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indefinite commodity

not whatsoever particular or sure ane of a class or group: a man; a chemical; a house.

a certain; a detail: i at a time; ii of a kind; A Miss Johnson called.

some other; 1 typically resembling: a Cicero in eloquence; a Jonah.

1 (used before plural nouns that are preceded past a quantifier singular in form): a hundred men (compare hundreds of men); a dozen times (compare dozens of times).

indefinitely or nonspecifically (used with adjectives expressing number): a bang-up many years; a few stars.

i (used earlier a noun expressing quantity): a thousand of ribbon; a score of times.

whatever; a single: not a one.

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The rainy conditions could not ________ my elated spirits on my graduation day.

Origin of a

¹

First recorded in 1200–fifty; Eye English language; originally preconsonantal phonetic variant of an¹

grammer notes for a

In both spoken and written English the selection of ai or an^one is determined by the initial sound of the word that follows. Before a consonant sound, a is used; before a vowel sound, an : a book, a rose; an apple, an opera. Issues ascend occasionally when the following discussion begins with a vowel letter of the alphabet only actually starts with a consonant audio, or vice versa. Some words beginning with the vowel letter u and all words beginning with the vowel letters eu are pronounced with a beginning consonant sound, as if the first letter were y : a union; a European. Some other spellings that begin with a vowel letter may also represent an initial consonant audio: a ewe; a ewer. The words one and once and all compounds of which they are the outset chemical element begin with a due west audio: a one-room flat; a one time-famous histrion.
The names of the consonant letters f, h, fifty, m, n, r, s, and x are pronounced with a starting time vowel sound. When these messages are used equally words or to form words, they are preceded by an : to rent an L-shaped studio; to wing an SST. The names of the vowel letter u and the semivowel letters w and y are pronounced with a beginning consonant audio. When used as words, they are preceded by a : a U-turn; The plumber installed a Y in the line.
In some words beginning with the letter h, the h is non pronounced; the words actually begin with a vowel audio: an hour; an honor. When the h is strongly pronounced, as in a stressed syllable at the beginning of a word, information technology is preceded by a : a history of the Sioux; a hero sandwich. (In one-time times an was used before strongly pronounced h in a stressed first syllable: an hundred. ) Such adjectives as celebrated, historical, heroic, and habitual, which begin with an unstressed syllable and oftentimes with a silent or weakly pronounced h, are commonly preceded by an, especially in British English. Simply the use of a rather than an is widespread in both voice communication and writing: a historical novel; a habitual criminal. Hotel and unique are occasionally preceded past an, but this use is increasingly old-fashioned. Although in some dialects an has yielded to a in all cases, edited writing reflects usage as described above.

Words nearby a

7-dehydrocholesterol, "800" number, 8d, 900 number, 911, a, A1, A1c, A2, A2 level, A3

Other definitions for a (2 of 28)

a ⁱⁱ

[ uh; when stressed ey ]

/ ə; when stressed eɪ /

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preposition

each; every; per: ten cents a sheet; three times a day.

Origin of a

ⁱⁱ

Originally Center English a, preconsonantal variant of on (meet a-¹); dislocated with a¹

Other definitions for a (3 of 28)

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preposition

Informal. a reduced, unstressed form of of (oft written as part of a single, unhyphenated word): cloth a gold; time a 24-hour interval; kinda; sorta.

Origin of a

ⁱⁱⁱ

Middle English; unstressed preconsonantal variant of of^one

Other definitions for a (4 of 28)

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auxiliary verb Informal.

a reduced, unstressed form of auxiliary take following some modals, as might, should, could, would, and must (usually written equally part of a single, unhyphenated discussion): We shoulda gone.

Origin of a

⁴

First recorded in 1300–50; Middle English; a phonetic variant of have

Other definitions for a (five of 28)

Origin of a

⁵

Offset recorded in 1200–fifty; Center English a, ha

Other definitions for a (6 of 28)

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abridgement Measurements.

Other definitions for a (7 of 28)

Other definitions for a (eight of 28)

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noun, plural A'due south or As, a's or as.

the offset letter of the English alphabet, a vowel.

any spoken sound represented by the letter A or a, as in bake, hat, father, or pocket-sized.

something having the shape of an A.

a written or printed representation of the letter of the alphabet A or a.

a device, as a printer's blazon, for reproducing the letter A or a.

Other definitions for a (9 of 28)

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abbreviation

Electricity. ampere; amperes.

answer.

British. arterial (used with a road number to designate a major highway): Take the A525 to Ruthin.

Other definitions for a (ten of 28)

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Symbol.

the offset in order or in a serial.

Sometimes a .

1. (in some grading systems) a grade or marking, as in school or college, indicating the quality of a educatee's work as excellent or superior.
2. (in some school systems) a symbol designating the first semester of a school year.

Music.

1. the sixth tone in the scale of C major or the first tone in the relative minor scale, A minor.
2. a cord, key, or pipe tuned to this tone.
3. a written or printed note representing this tone.
4. (in the fixed system of solmization) the sixth tone of the scale of C major, called la.
5. the tonality having A every bit the tonic notation.

Physiology. a major blood group, normally enabling a person whose blood is of this type to donate claret to persons of grouping A or AB and to receive blood from persons of O or A. Compare ABO system.

Sometimes a . the medieval Roman numeral for fifty or 500. Compare Roman numerals.

Chemistry. (formerly) argon.

a proportional shoe width size, narrower than B and wider than AA.

a proportional brassiere cup size, smaller than B and larger than AA.

a quality rating for a corporate or municipal bond, lower than AA and higher than BBB.

Other definitions for a (11 of 28)

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a reduced form of the Old English preposition on, meaning "on," "in," "into," "to," "toward," preserved earlier a noun in a prepositional phrase, forming a predicate adjective or an adverbial element (afoot; abed; ashore; bated; away), or before an adjective (afar; aloud; alow), as a moribund prefix with a verb (acknowledge), and in archaic and dialectal apply earlier a present participle in -ing (set the bells aringing); and added to a verb stalk with the force of a present participle (afire; afraid; aglow; astride; and originally, awry).

Origin of a-

¹

Middle English, late Old English; cf. a^two, nowadays

Other definitions for a (12 of 28)

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a reduced form of the Old English preposition of: alike; anew; anew.

Origin of a-

ⁱⁱ

Heart English; see a³

Other definitions for a (13 of 28)

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an old indicate-action prefix, not referring to an human activity as a whole, but only to the offset or finish: She arose (rose up). They abided by their beliefs (remained faithful to the cease).

Origin of a-

ⁱⁱⁱ

Middle English language; Old English language a- (unstressed), ǣ-, ā-, ō- (stressed; see abb, woof^ane, oakum), rarely or- (come across ordeal), ultimately from unattested Germanic uz- from unstressed Indo-European uss-, from ud-s (these latter two likewise unattested), akin to out; in some cases confused with a-⁴, as in abbreviate

Other definitions for a (xiv of 28)

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variant of ab- before p and five: aperient; avert.

Origin of a-

⁴

Center English <Latin ā-, a- (variant of ab-ab-); in some words <French a-<Latin ab-, every bit in abridge

Other definitions for a (15 of 28)

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variant of ad-, used: (ane) before sc, sp, st (ascend) and (2) in words of French derivation (often with the sense of increase, addition): amass.

Origin of a-

^v

Middle English, in some words <Centre French a-<Latin ad- prefix or ad preposition (see ad-), as in abut; in others <Latin a- (variant of ad-ad-), as in arise

Other definitions for a (16 of 28)

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variant of an-ⁱ before a consonant, meaning "not," "without": amoral; atonal; achromatic.

Other definitions for a (17 of 28)

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atomic (used in combination): A-flop; A-institute.

Other definitions for a (xviii of 28)

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a plural ending of nouns borrowed from Greek and Latin: phenomena; criteria; data; errata; genera.

Other definitions for a (nineteen of 28)

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a feminine singular ending of nouns borrowed from Latin and Greek, too used in New Latin coinages to Latinize bases of any origin, and every bit a Latin substitute for the feminine ending -ē of Greek words: anabaena; cinchona; pachysandra.

Other definitions for a (20 of 28)

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an ending of personal names forming feminines from masculines: Georgia; Roberta.

Origin of -a

³

From Latin feminine ending -a, as Claudia, feminine of Claudius; run into -aⁱⁱ

Other definitions for a (21 of 28)

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a suffix designating the oxide of the chemical element denoted by the stem: alumina; ceria; thoria.

Origin of -a

^iv

Probably generalized from the -a of magnesia

Other definitions for a (22 of 28)

Other definitions for a (23 of 28)

Origin of a.

¹

<Latin annō, ablative of annus

Other definitions for a (24 of 28)

Origin of a.

²

From the Latin word ante

Other definitions for a (25 of 28)

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abbreviation

most.

acre; acres.

agile.

adjective.

alto.

ampere; amperes.

bearding.

answer.

are; ares.

Baseball game. assist; assists.

Other definitions for a (26 of 28)

Origin of A.

¹

<Latin annō, ablative of annus

Other definitions for a (27 of 28)

Origin of A.

²

From the Latin discussion ante

Other definitions for a (28 of 28)

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abbreviation

Accented.

Academy.

acre; acres.

America.

American.

angstrom.

Dictionary.com Unabridged Based on the Random Firm Unabridged Dictionary, © Random Business firm, Inc. 2022

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Words related to a

How to use a in a sentence

• A timeline for election officials put together by the Department of Homeland Security showed that the process for expanding mail-in voting should have begun in April.

• A large question in public health law is how far an executive, such adue south a governor, canorthward get without legislative approvafifty.

• A totafifty of about 26 meg doses of vaccine B would be available past the terminate of the year, most of them in December.

• A number of recent polls at the state level have measured both the presidentia50 ballot and Senate races.

• A waiter touching a plate with a bare hand is indeed not ideal, which is why waiters are generally instructed to nosotrosar gloves.

• ROME — What does it take for a Hollywood A-lister to get a private audience with Pope Francis?

• Yes, Byrd—dead four-and-a-half years at present—westadue south a Kleagle in the Ku Klux Kladue north.

• By the fourth dimension it concluded with a sing-a-long of "XO," Beyoncé had done the rare thing.

• In another year, stories about the strange new face of an A-list actress might draw chortles and cackles.

• Becaapply Duck Dynasty receives monster Television ratings and Robertson paid by a company (A&E) while making these public statements.

• Now-a-days information technology is the bankrupt who flouts, and his too confiding creditors who are jeered and laughed at.

• He felt himself the meanest, vilest thing a-crawl upon this sinful earth, and she—dear God!

• All that scientific bric-a-brac in the cupboard had far amend be thrown away.

• Urinary sediments may be studied under three heads: A. Unorganized sediments.

• I knowed, a-course, that I could get kick up a fuss when Simpson stopped by his office on his trip back from Goldstone.

British Dictionary definitions for a (1 of eleven)

a ⁱ

/ (ə, stressed or emphatic eɪ) /

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determiner (indefinite commodity; used before an initial consonant)

used preceding a singular countable noun, if the noun is not previously specified or known a dog; a terrible thwarting

used preceding a proper noun to point that a person or thing has some of the qualities of the 1 named a Romeo; a Shylock

used preceding a noun or determiner of quantity a cupful; a dozen eggs; a great many; to read a lot

used preceding a substantive indicating a physical or abstract matter capable of being divided half a loaf; a quarter of a minute

(preceded past once, twice, several times, etc ) each or every; per once a 24-hour interval; fifty pence a pound

a sure; one to change policy at a stroke; a Mr Jones called

(preceded by not) any at all not a promise

British Dictionary definitions for a (2 of 11)

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verb

an informal or dialect word for have they'd a said if they'd known

British Dictionary definitions for a (iii of 11)

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preposition

(usually linked to the preceding noun) an informal form of of sorta deplorable; a kinda waste

British Dictionary definitions for a (4 of 11)

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symbol for

acceleration

are(s) (metric measure out of land)

atto-

British Dictionary definitions for a (five of 11)

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substantive plural a's, A's or As

the offset letter and beginning vowel of the modern English alphabet

whatever of several speech sounds represented by this letter, in English as in accept, handbag, at-home, shortage, or cobra

Likewise chosen: alpha the beginning in a series, esp the highest course or mark, every bit in an exam

from A to Z from start to finish, thoroughly and in detail

British Dictionary definitions for a (6 of 11)

British Dictionary definitions for a (7 of 11)

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symbol for

music

1. a note having a frequency of 440 hertz (A to a higher place middle C) or this value multiplied or divided by any ability of ii; the sixth annotation of the scale of C major
2. a key, string, or pipe producing this note
3. the major or modest cardinal having this note as its tonic

a human being blood blazon of the ABO group, containing the A antigen

(in Britain) a major arterial road the A3 runs from London to Portsmouth

(formerly, in Uk)

1. a film certified for viewing by anyone, but which contains material that some parents may not wish their children to see
2. (as modifier) an A flick

mass number

the number 10 in hexadecimal note

cards ace

chem argon (now superseded by Ar)

ampere(south)

Besides: at ampere-turn

absolute (temperature)

(in circuit diagrams) ammeter

surface area

(in combination) atomic an A-flop; an A-constitute

chem affinity

biochem adenine

logic a universal affirmative categorical proposition, such as all men are mortal: oftentimes symbolized every bit SaP Compare Eastward, I 2, O 1

1. a person whose job is in top management, or who holds a senior administrative or professional person position
2. (every bit modifier) an A worker See likewise occupation groupings

abbreviation for

Austria (international car registration)

Discussion Origin for A

from Latin a (ffirmo) I assert

British Dictionary definitions for a (eight of 11)

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prefix

not; without; opposite to atonal; asocial

Word Origin for a-

from Greek a-, an- non, without

British Dictionary definitions for a (9 of xi)

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prefix

on; in; towards afoot; abed; aground; aback

literary, or archaic (used earlier a present participle) in the deed or process of come a-running; get a-hunting

in the condition or state of afloat; alive; asleep

British Dictionary definitions for a (10 of xi)

British Dictionary definitions for a (xi of 11)

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abbreviation for

acre(due south) or acreage

America(n)

reply

Collins English Lexicon - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for a (1 of 4)

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abbr.

area

asymmetrical

specific assimilation coefficient

systemic arterial blood (used every bit a subscript)

full acerbity

Medical definitions for a (2 of 4)

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abbr.

absorbance

alveolar gas (used equally a subscript)

adenine

AMP (in polynucleotides)

ampere

angstrom

Medical definitions for a (iii of 4)

Medical definitions for a (four of four)

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Visitor.

Scientific definitions for a (1 of 3)

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Abbreviation of adenine, ampere, angstrom, surface area

Scientific definitions for a (2 of 3)

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A prefix pregnant "without" or "not" when forming an adjective (such as amorphous, without form, or atypical, non typical), and "absenteeism of" when forming a noun (such as arrhythmia, absence of rhythm). Before a vowel or h it becomes an- (equally in anhydrous, anoxia).

Scientific definitions for a (iii of 3)

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Visitor. All rights reserved.

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Source: https://www.dictionary.com/browse/a

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