/ flɜːˈteɪʃn; NAmE flɜːrˈt-/ noun
1.
[ C , U ] flirtation with sth a short period of time during which sb is involved or interested in sth, often not seriously :
a brief and unsuccessful flirtation with the property market
2.
[ U ] behaviour that shows you find sb sexually attractive but are not serious about them :
Frank's efforts at flirtation had become tiresome to her.
3.
[ C ] flirtation (with sb) a short sexual relationship with sb that is not taken seriously