flirtation vs flirting

flirtation and flirting both are nouns.

Word	Noun	Adjective	Verb	Adverb
flirtation	Yes	No	No	No
flirting	Yes	No	No	No

As nouns, flirtation and flirting are synonyms defined as:

flirtation and flirting: playful behavior intended to arouse sexual interest

Other synonyms of flirtation include coquetry, dalliance, flirt, toying.

flirtation (noun)	flirting (noun)
playful behavior intended to arouse sexual interest	playful behavior intended to arouse sexual interest