A vs. Cappella

Anumeral

The ordinal number first, derived from this letter of the English alphabet, called a and written in the Latin script.

Cappellanoun

See A cappella.

Anoun

The name of the Latin script letter A/a.

Apreposition

(archaic) To do with position or direction; In, on, at, by, towards, onto.

‘Stand a tiptoe.’;

Apreposition

To do with separation; In, into.

‘Torn a pieces.’;

Apreposition

To do with time; Each, per, in, on, by.

‘I brush my teeth twice a day.’;

Apreposition

(obsolete) To do with method; In, with.

Apreposition

(obsolete) To do with role or capacity; In.

‘A God’s name.’;

Apreposition

To do with status; In.

Apreposition

(archaic) To do with process, with a passive verb; In the course of, experiencing.

Apreposition

(archaic) To do with an action, an active verb; Engaged in.

Apreposition

(archaic) To do with an action/movement; To, into.

Apreposition

Of.

‘The name of John a Gaunt.’;

Averb

Have.

‘I'd a come, if you'd a asked.’;

Apronoun

He.

Ainterjection

A meaningless syllable; ah.

Aadverb

All.

Aadjective

All.

A

The first letter of the English and of many other alphabets. The capital A of the alphabets of Middle and Western Europe, as also the small letter (a), besides the forms in Italic, black letter, etc., are all descended from the old Latin A, which was borrowed from the Greek Alpha, of the same form; and this was made from the first letter ( ) of the Phœnician alphabet, the equivalent of the Hebrew Aleph, and itself from the Egyptian origin. The Aleph was a consonant letter, with a guttural breath sound that was not an element of Greek articulation; and the Greeks took it to represent their vowel Alpha with the ä sound, the Phœnician alphabet having no vowel symbols.

A

The name of the sixth tone in the model major scale (that in C), or the first tone of the minor scale, which is named after it the scale in A minor. The second string of the violin is tuned to the A in the treble staff. - A sharp (A$) is the name of a musical tone intermediate between A and B. - A flat (A$) is the name of a tone intermediate between A and G.

‘O fair Creseide, the flower and A per seOf Troy and Greece.’;

A

An adjective, commonly called the indefinite article, and signifying one or any, but less emphatically.

A

In each; to or for each; as, "twenty leagues a day", "a hundred pounds a year", "a dollar a yard", etc.

A

Of.

A

A barbarous corruption of have, of he, and sometimes of it and of they.

A

An expletive, void of sense, to fill up the meter

‘A merry heart goes all the day,Your sad tires in a mile-a.’;

Apreposition

In; on; at; by.

Apreposition

In process of; in the act of; into; to; - used with verbal substantives in -ing which begin with a consonant. This is a shortened form of the preposition an (which was used before the vowel sound); as in a hunting, a building, a begging.

Anoun

the blood group whose red cells carry the A antigen

Anoun

a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation

Anoun

any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes

Anoun

one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)

Anoun

(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA

Anoun

the basic unit of electric current adopted under the Systeme International d'Unites;

‘a typical household circuit carries 15 to 50 amps’;

Anoun

the 1st letter of the Roman alphabet

Adeterminer

used when mentioning someone or something for the first time in a text or conversation

‘it has been an honour to meet you’; ‘a man came out of the room’;

Adeterminer

used with units of measurement to mean one such unit

‘a hundred’; ‘a quarter of an hour’;

Adeterminer

one single; any

‘I simply haven't a thing to wear’;

Adeterminer

used when mentioning the name of someone not known to the speaker

‘a Mr Smith telephoned’;

Adeterminer

someone like (the name specified)

‘you're no better than a Hitler’;

Adeterminer

used to indicate membership of a class of people or things

‘he is a lawyer’; ‘this car is a BMW’;

Adeterminer

in, to, or for each; per (used when expressing rates or ratios)

‘typing 60 words a minute’; ‘a move to raise petrol prices by 3p a litre’;

Anoun

the first letter of the alphabet.

Anoun

denoting the first in a set of items, categories, sizes, etc.

Anoun

denoting the first of two or more hypothetical people or things

‘suppose A had killed B’;

Anoun

the highest class of academic mark

‘a dazzling array of straight A's’;

Anoun

(in the UK) denoting the most important category of road, other than a motorway

‘busy A-roads’; ‘the A34’;

Anoun

denoting the highest-earning socio-economic category for marketing purposes, including top management and senior professional personnel.

Anoun

denoting the first file from the left, as viewed from White's side of the board.

Anoun

the first constant to appear in an algebraic expression.

Anoun

denoting the uppermost soil horizon, especially the topsoil.

Anoun

the human blood type (in the ABO system) containing the A antigen and lacking the B.

Anoun

(with numeral) denoting a series of international standard paper sizes each twice the area of the next, as A0, A1, A2, A3, A4, etc., A4 being 210 × 297 mm.

Anoun

a shape like that of a capital A

‘an A-shape’;

Anoun

the sixth note of the diatonic scale of C major. The A above middle C is usually used as the basis for tuning and in modern music has a standard frequency of 440 Hz.

Anoun

a key based on a scale with A as its keynote.

A

A, or a, is the first letter and the first vowel letter of the modern English alphabet and the ISO basic Latin alphabet. Its name in English is a (pronounced ), plural aes.