annoyance vs aggravator

annoyance and aggravator both are nouns.

Word	Noun	Adjective	Verb	Adverb
annoyance	Yes	No	No	No
aggravator	Yes	No	No	No

As nouns, annoyance and aggravator are synonyms defined as:

annoyance and aggravator: an unpleasant person who is annoying or exasperating

annoyance (noun)	aggravator (noun)
the act of troubling or annoying someone	an unpleasant person who is annoying or exasperating
something or someone that causes trouble; a source of unhappiness
anger produced by some annoying irritation
an unpleasant person who is annoying or exasperating
the psychological state of being irritated or annoyed