Example : It was all done in play.
Their frolic in the surf threatened to become ugly.

Synonyms : caper, gambol, play, romp

Example : The children frolicked in the garden.
The gamboling lambs in the meadows.
The toddlers romped in the playroom.

Synonyms : cavort, disport, frisk, gambol, lark, lark about, rollick, romp, run around, skylark, sport