1 v-recip If you flirt with someone, you behave as if you are sexually attracted to them, in a playful or not very serious way.
Dad's flirting with all the ladies, or they're all flirting with him, as usual... V with n
He flirts outrageously. V (non-recip)
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flirtation (flirtations plural) n-var oft N with n
...a professor who has a flirtation with a student..., She was aware of his attempts at flirtation.