stimulation vs foreplay

stimulation and foreplay both are nouns.

Word	Noun	Adjective	Verb	Adverb
stimulation	Yes	No	No	No
foreplay	Yes	No	No	No

As nouns, stimulation and foreplay are synonyms defined as:

stimulation and foreplay: mutual sexual fondling prior to sexual intercourse

Other synonyms of stimulation include arousal.

stimulation (noun)	foreplay (noun)
the act of arousing an organism to action	mutual sexual fondling prior to sexual intercourse
mutual sexual fondling prior to sexual intercourse
any stimulating information or event; acts to arouse action
(physiology) the effect of a stimulus (on nerves or organs etc.)