flirting vs flirtation

flirting and flirtation both are nouns.

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

As nouns, flirting and flirtation are synonyms defined as:

flirting and flirtation: playful behavior intended to arouse sexual interest

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

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