1 a or A
Pronounced:
/ˈeɪ/
Function:
nounInflected forms:
plural a's or as or A's or AsMeaning:
1 : the first letter of the English alphabet [count] ▪ a word that begins with an a [noncount] ▪ a word that begins with a
2 : a musical note or key referred to by the letter A : the sixth tone of a C-major scale [count] ▪ play/sing an A [noncount] ▪ a song in the key of A
3 [count] : a grade that is given to a student for doing excellent work ▪ She got an A on the exam. ▪ He's an A student. [=a student who gets A's for his schoolwork]
4 [noncount] —used to refer to the first of two or more people, places, or things that are being considered ▪ If A, B, and C divide the coins equally, how many does each person get?
2 : a musical note or key referred to by the letter A : the sixth tone of a C-major scale [count] ▪ play/sing an A [noncount] ▪ a song in the key of A
3 [count] : a grade that is given to a student for doing excellent work ▪ She got an A on the exam. ▪ He's an A student. [=a student who gets A's for his schoolwork]
4 [noncount] —used to refer to the first of two or more people, places, or things that are being considered ▪ If A, B, and C divide the coins equally, how many does each person get?
an A for effort —see effort
exhibit A —see 2exhibit
from A to Z
: including everything ▪ The book is titled “Home Repairs From A to Z.”
from (point) A to (point) B
: from one place to another ▪ I don't care about the scenery. I'm only interested in getting from A to B.

