A Definition
- type a
- group A
- amp
- ampere
- angstrom
- angstrom-unit
- adenine
- axerophthol
- vitamin-a
- antiophthalmic factor
- deoxyadenosine monophosphate
- a
 (archaic or slang) Have. [between 1150 and 1350, continued in some use until 1650; used again after 1950]
Eye dialect spelling of have.
(archaic) Alternative form of a (pronoun)
(archaic) Alternative form of a (verb)
(archaic) Alternative form of Aeaea.
A meaningless syllable; ah.
Alternative spelling of a (all). [First attested from 1350 to 1470.]
Allele (recessive)
- Completely; thoroughly.
- from beginning to end; completely; exhaustively
Other Word Forms of A
Noun
Idioms, Phrasal Verbs Related to A
Origin of A
-  Sometimes borrowed from French à (“(various prepositions)”), as in vis-à-vis, sometimes reduced from of. Other words may be established on these models, as in jack-a-napes. May be spelled differently, with same schwa pronunciation, as in o' or Cockney (from Cockeney); other early form in ragamuffin and cock-a-leekie. From Wiktionary 
-  From the homographic case endings of the nominative, accusative, and vocative forms of numerous Latin neuter second declension nouns. From Wiktionary 
- Middle English, from Old English ān (“one, a, lone, sole”). The "n" was gradually lost before consonants in almost all dialects by the 15th century. - From Wiktionary 
-  Possibly due to the propensity in some non-rhotic dialects to pronounce words ending in -er as if they ended in an -a. From Wiktionary 
-  From Middle English and Old English lower case letter a and split of Middle English and Old English lower case letter æ. From Wiktionary 
- From Middle English and Old English upper case letter A and split of Middle English and Old English upper case letter Æ. - From Wiktionary 
-  From Middle English a, o, from Old English a-, an, on. From Wiktionary 
-  Representing the nominative singular case ending of Latin first-declension feminine nouns. From Wiktionary 
-  From Middle English a, ha contraction of have, or haven From Wiktionary 
-  Representing Italian, Portuguese, and Spanish feminine nouns. From Wiktionary 
-  Middle English from Old English from an on on From American Heritage Dictionary of the English Language, 5th Edition 
- Various, often difficult to determine. Used in Middle English since 14th century. - From Wiktionary 
-  Middle English alteration of haven to have have From American Heritage Dictionary of the English Language, 5th Edition 
-  Middle English variant of an an an1 From American Heritage Dictionary of the English Language, 5th Edition 
-  From Middle English (Northern dialect) aw, alteration of all. From Wiktionary 
-  Middle English from Old English an in on From American Heritage Dictionary of the English Language, 5th Edition 
- Added to lines of poetry and verse to maintain metrics. - From Wiktionary 
-  weakened form of OE an, on, in, on From Webster's New World College Dictionary, 5th Edition 
-  From Middle English, contraction of of. From Wiktionary 
-  Shortened version of preposition of. From Wiktionary 
-  Greek ne in Indo-European roots From American Heritage Dictionary of the English Language, 5th Edition 
-  Shortened version of verb have. From Wiktionary 
-  Unstressed form of on. From Wiktionary 
-  Shortened version of verb to. From Wiktionary 
-  Variant spelling of ah. From Wiktionary 
-  From Latin -a. From Wiktionary 
-  The vowel of rat From Wiktionary 





