D defs.my
Entry 2 senses · 2 variants Webster, 1913

Unbolt

/ŭn'-bōltˌ/ · Un·bolt · IPA /ˈʌnbˌoʊlt/
01 v. t. To remove a bolt from; to unfasten; to unbar; to open.
  1. 1.
    To remove a bolt from; to unfasten; to unbar; to open.
02 v. i. To explain or unfold a matter; to make a revelation.
  1. 1.
    To explain or unfold a matter; to make a revelation.[Obs.]