meaning
a category of artistic composition, as in music or literature,characterized by similarities in form, style, or subject matter.
CLICHE:
a phrase or opinion that is overused and betrays a lack of original thought.
STEREOTYPE:
an idea, trait , convention etc, that has grown stale through fixed usage.
a set of inaccurate, simplistic generalizations about a group that allows others to categorize them and treat them accordingly.