/ ˈdæliəns; NAmE / noun [ U , C ] ( old-fashioned or humorous )
1.
the behaviour of sb who is dallying with sb/sth :
It turned out to be his last dalliance with the education system.
2.
a sexual relationship that is not serious
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WORD ORIGIN
Middle English (in the sense conversation ): from dally + -ance .