intercourse vs carnal knowledge

intercourse and carnal knowledge both are nouns.

Word	Noun	Adjective	Verb	Adverb
intercourse	Yes	No	No	No
carnal knowledge	Yes	No	No	No

As nouns, intercourse and carnal knowledge are synonyms defined as:

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

intercourse (noun)	carnal knowledge (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
communication between individuals