Definitions for playactˈpleɪˌækt
Random House Webster's College Dictionary
to engage in make-believe.
to be insincere or affected in speech, manner, etc.
to perform in a play.
(v.t.)to dramatize; act out.
Origin of playact:
act, play, roleplay, playact(verb)
perform on a stage or theater
"She acts in this play"; "He acted in `Julius Caesar'"; "I played in `A Christmas Carol'"
To perform on, or as if on, a stage