a

a is an Latin word started with a. Here is the definition of a in English

a
a
preposition by (agent), from (departure, cause, remote origin/time); after (reference);
a
a
interjection Ah!; (distress/regret/pity, appeal/entreaty, surprise/joy, objection/contempt);
a
a
preposition ante, abbreviation a.; [in calendar expression a. d. = ante diem => before the day];
a
1. interjection
Ah!; (distress/regret/pity, appeal/entreaty, surprise/joy, objection/contempt)

2. PREP ABL
by (agent), from (departure, cause, remote origin/time); after (reference)

3. PREP ACC
ante, abbreviation a.; [in calendar expression a. d. = ante diem => before the day]

4. A. = abbreviationmasculine verb
Aulus (Roman praenomen); (abbreviation A./Au.); [Absolvo, Antiquo => free, reject]

5. a. = abbreviationmasculine verb
year; abbreviation ann./a.; [regnavit a(nnis). XLIIII => he reigned for 44 years]