lovemaking vs making love

lovemaking and making love both are nouns.

Word	Noun	Adjective	Verb	Adverb
lovemaking	Yes	No	No	No
making love	Yes	No	No	No

As nouns, lovemaking and making love are synonyms defined as:

lovemaking and making love: sexual activities (often including sexual intercourse) between two people

Other synonyms of lovemaking include love, love life, sexual love.

lovemaking (noun)	making love (noun)
sexual activities (often including sexual intercourse) between two people	sexual activities (often including sexual intercourse) between two people