The term 'play dumb' can be summarized by two crossword solutions: feignorance (11 letters) and clamup (6 letters). Feignorance is a combination of the words 'FEIGN' and 'IGNORANCE, ' which means to pretend to be ignorant. Clamup, on the other hand, is a verb that means to remain silent or refuse to answer questions. Together, these two words describe the act of playing dumb, which is when someone pretends to be unaware or uneducated in order to avoid answering a question or getting into trouble.