unscrew

verb

1. (transitive)To loosen a screw or thing by turning it.

   “I'm having some trouble unscrewing the lid of this jar.”

   “It requires opening a complex lock with a key that also unscrews a bolt six inches long. Unscrewing the bolt itself takes six minutes.”

   “A young orangutan in the San Diego Zoo became famous for unbolting the screening of his crib, removing the wires, and moving through the zoo nursery, unscrewing lightbulbs.”

   “Ms. Van Son unscrewed the pump’s handle and shoved it into her bra.”

   “The challenge is how to unscrew the cap with a roundhouse kick without knocking the bottle over.”