1) Detach 2) Free from dependence 3) Loose a bra 4) Open a clasp 5) Release 6) Release a catch 7) Release from an eye 8) Remove from the eye 9) Take off a hook 10) To remove from a hook 11) To unfasten by means of hooks 12) To unfasten the bra of 13) To unhook a corset 1) Disengage 2) Undo 
• (v. t.) To loose from a hook; to undo or open by loosening or unfastening the hooks of; as, to unhook a fish; to unhook a dress.
[v] - take off a hook
to detach by or as if by releasing a hook: to unhook a tractor from a trailer. · to unfasten or open by undoing a hook or hooks: to unhook a door; to unhook a corset.