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behave carelessly or indifferently;
"Play about with a young girl's affection"
-
manipulate manually or in one's mind or imagination;
"She played nervously with her wedding ring"
"Don't fiddle with the screws"
"He played with the idea of running for the Senate"
-
engage in an activity as if it were a game rather than take it seriously;
"They played games on their opponents"
"play the stock market"
"play with her feelings"
"toy with an idea"