1.   He concealed his identity with such success that his desire to remain hidden was probably deliberate.

2.   He wore a fake mustache in a ruse to conceal his identity.

3.   Here the passive enables the speaker to conceal the identity of the informant.

4.   She used a false name to conceal her identity.

5.   Why did she need to conceal her identity?

6.   Amid a media frenzy, the teens were sentenced to separate prisons and later given new names to conceal their identities.

7.   Although they have distanced themselves from the cult, which now calls itself Aleph, the children conceal their identities for fear of reprisals.

8.   Both lawyers who disclosed recent developments did so on condition that their identities be concealed.

9.   But the defense apparently could not overcome a mountain of prosecution evidence that showed they knowingly concealed the identity of their client and sought to hide their payments.

10.   During the break with Great Britain, the revolutionaries employed pseudonyms both to conceal their identity from Crown authorities and to impart a message.