a Hear it!

a1 definition

a or A (ā)

noun pl. A's (āz), a's

  1. the first letter of the English alphabet: from the Greek alpha, a borrowing from the Phoenician
  2. any of the speech sounds that this letter represents, as, in English, the vowel (a) of hat, (ä) of father, (ā) of bake, or (ô) of call
  3. a type or impression for a or A
  4. the first in a sequence or group
  5. an object shaped like

adjective

  1. of a or A
  2. first in a sequence or group
  3. shaped like
a Idioms

from A to Z

from beginning to end; completely; exhaustively
a2 definition

a (ə; stressed, ā)

adjective, indefinite article

  1. one; one sort of we planted a tree
  2. each; any one [a gun is dangerous]: a connotes a thing not previously noted or recognized, in contrast with the, which connotes a thing previously noted or recognized

Etymology: form of an before consonants: see an, adj.

to each; in each; for each; per once a day

Etymology: < OE an, on, in, on, at

a3 definition

a or a' (ô, ä)

adjective

Scot. all
a4 definition

a

  1. about
  2. absent
  3. Physics acceleration
  4. active
  5. adjective
  6. adult
  7. alto
  8. anonymous
  9. answer
  10. are (unit of area)
  11. atto-
A1 definition

A (ā)

noun

  1. a blood type
  2. Educ. a grade indicating excellence an A in history
  3. Music
    1. the sixth tone or note in the ascending scale of C major
    2. a key, string, etc. producing this tone
    3. the scale having this tone as the keynote

adjective

first-class; A 1
A2 definition

A

  1. Physics absolute
  2. adenine
  3. America(n)
  4. ampere
  5. analog
  6. angstrom
    also Å
  7. anode
  8. answer
  9. April
  10. Chem., Archaic argon
  11. Baseball, Basketball, Hockey assist(s)
  12. attendance
  13. August

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:
a Synonyms

a

modif. & prep.

  1. The indefinite article; before vowels, written ""an''

    some, one, any, each, some kind of, some particular, any of, any one of, a certain.

    Antonyms the*, this*, that. *

  2. An indication of frequency

    per, in a, on a, each, every, to the, by the, at the rate of.


Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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MLA Style

"a." Webster's New World College Dictionary. 2009

  • Your Dictionary. 5 July 2009
  • <www.yourdictionary.com/a>

APA Style

a. (2009). In Webster's New World College Dictionary

  • Retrieved July 5th, 2009, from www.yourdictionary.com/a

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