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ALL meanings of a

A, a
A a
  • variable noun a In music, A is the sixth note in the scale of C major. Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved. 13
  • variable noun a A is the first letter of the English alphabet. Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved. 7
  • determiner a You use a or an in expressions such as eight hours a day to express a rate or ratio. COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A ampere COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A absolute COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • adjective a first-class; A 1 COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a the scale having this tone as the keynote COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a a key, string, etc. producing this tone COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a the sixth tone or note in the ascending scale of C major COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a a grade indicating excellence COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a a blood type COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A America(n) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A acre(s) or acreage COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a angstrom unit COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A Austria (international car registration) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a person whose job is in top management, or who holds a senior administrative or professional position COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a universal affirmative categorical proposition, such as all men are mortal: often symbolized as SaP COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A adenine COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A area COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a (in circuit diagrams) ammeter COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a absolute (temperature) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a argon (now superseded by Ar) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A ace COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a mass number COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a (as modifier) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a film certified for viewing by anyone, but which contains material that some parents may not wish their children to see COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a (in Britain) a major arterial road COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a human blood type of the ABO group, containing the A antigen COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a the major or minor key having this note as its tonic COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a key, string, or pipe producing this note COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • symbol a a note having a frequency of 440 hertz (A above middle C) or this value multiplied or divided by any power of 2; the sixth note of the scale of C major COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A atto- COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • abbreviation A acceleration COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a any at all COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a a certain; one COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a each or every; per COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a used preceding a noun indicating a concrete or abstract thing capable of being divided COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a used preceding a noun or determiner of quantity COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a used preceding a proper noun to indicate that a person or thing has some of the qualities of the one named COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a the first in a series, esp the highest grade or mark, as in an examination COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a an object shaped like A COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • adjective a first in a sequence or group COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • determiner a You use a or an when you are referring to any person or thing of a particular type and do not want to be specific. COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 4
  • noun a A or a is used as an abbreviation for words beginning with a, such as 'acceleration', 'ampère', or 'answer'. Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved. 4
  • variable noun a If you get an A as a mark for a piece of work or in an exam, your work is extremely good. Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved. 4
  • noun a any of the speech sounds that this letter represents, as, in English, the vowel ( (æ) ; a) ) of hat, ( (ɑ) ; ä) ) of father, ( (eɪ) ; ā) ) of bake, or ( (ɔ) ; ô) ) of call COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 3
  • symbol a ampere(s) COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 3
  • adjective a of a or A COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 3
  • abbreviation A affinity COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 3
  • abbreviation A attendance COBUILD Advanced English Dictionary . Copyright © HarperCollins Publishers 3
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