flirtation vs toying

flirtation and toying both are nouns.

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

As nouns, flirtation and toying are synonyms defined as:

flirtation and toying: playful behavior intended to arouse sexual interest

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

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