Something, most often a phrase or expression, that is overused or used outside its original context, so that its original impact and meaning are lost. A trite saying; a platitude.
A stereotype (printing plate).
To use a cliché; to make up a word or a name that sounds like a cliché.
clichéd; having the characteristics of a cliché
A word that has a specific meaning within a specific field of expertise.