coitus vs sexual congress

coitus and sexual congress both are nouns.

Word	Noun	Adjective	Verb	Adverb
coitus	Yes	No	No	No
sexual congress	Yes	No	No	No

As nouns, coitus and sexual congress are synonyms defined as:

coitus and sexual congress: sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur

coitus (noun)	sexual congress (noun)
sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur	sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur