Definition of paly:
activity for amusement only, especially among the young; a literary
composition, intended to be represented by actors impersonating the characters and speaking the dialogue
"no wonder the fanbelt is slipping: there's too much play in it."
to act in a manner such that one has fun
; to engage in activities expressly for the purpose of recreation
; to produce music using a musical instrument
"I've practiced the piano off and on, and I still can't play very well."