To conceal something is to hide it or keep it from being seen or known. It can refer to physical objects or to information and feelings.
From Latin 'concelāre', from 'con-' ('completely') and 'celāre' ('to hide'). It came into English via Old French 'concélér', keeping the sense of thoroughly hiding something.
Conceal is stronger than just 'put away'; it suggests you don’t want others to find or notice it at all. Magic tricks, camouflage, and even polite smiles can all be ways of concealing what’s really there.
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