cover

blow someone's cover discover or expose someone's real identity.

break cover emerge into the open; suddenly leave a place of shelter.

☞ Break cover originally referred to a hunted animal emerging from the undergrowth in which it had been hiding.

cover all the bases deal with something thoroughly. informal

cover the waterfront cover every aspect of something. North American informal

2013New Statesman Public service broadcasting had a responsibility to 'cover the waterfront', he argued, especially because of the way the press now failed in this task. Very different viewpoints have to be got across.

cover your ass: seeass.

cover your back foresee and avoid the possibility of attack or criticism. informal

cover your tracks conceal evidence of what you have done.