unbolt
verb (used with object)
to open (a door, window, etc.) by or as if by removing a bolt; unlock; unfasten.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"They are unbolting the door into the yard," John Wilkes whispered.
From When London Burned : a Story of Restoration Times and the Great Fire by G. A. (George Alfred) Henty