1 [with object] state that one refuses to admit the truth or existence of:both firms deny any responsibility for the tragedy
refuse to admit the truth of (a concept or proposition that is supported by the majority of scientific or historical evidence):an anti-environmentalist campaign group that denies climate change
2 [with two objects] refuse to give (something requested or desired) to (someone):the inquiry was denied access to intelligence sources
(deny oneself) refuse to let oneself have something that one desires:he had denied himself sexually for years
[with object] archaic refuse access to (someone):the servants are ordered to deny him