modif. & prep.
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.
An indication of frequency
per, in a, on a, each, every, to the, by the, at
the rate of.
"a." YourDictionary, n.d. Web. 24 May 2018. <http://thesaurus.yourdictionary.com/a>.
a. (n.d.). Retrieved May 24th, 2018, from http://thesaurus.yourdictionary.com/a