safe vs sex activity

safe and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
safe	Yes	Yes	No	No
sex activity	Yes	No	No	No

safe (noun)	sex activity (noun)
strongbox where valuables can be safely kept	activities associated with sexual intercourse
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
a ventilated or refrigerated cupboard for securing provisions from pests

safe (adjective)	sex activity (adjective)
free from danger or the risk of harm
having reached a base without being put out
financially safe
(of an undertaking) secure from risk