The phrase "a locked closet" is correct and usable in written English.
You can use it to describe a closet that is secured and cannot be opened without a key or combination.
Example: "I found a locked closet in the attic, and I wonder what treasures it might hold inside."
Alternatives: "a secured cabinet" or "a closed storage space".
His only portrait is stored in a locked closet.
The thief emptied drawers and smashed a locked closet door, stealing hundreds of dollars in cash, two laptops, cameras and a scanner, she said.
Last Sept. 20, the police found Mrs. Laundau's body in a locked closet in a basement bedroom that she shared with Ms. Tooker.
They said investigators had found a laptop in a locked closet in the master bathroom after a locksmith opened the door.
It's actually a locked closet within Town Hall, where the documents are stored in cushioned cardboard boxes away from the damaging effects of light.
Alma, meanwhile, spends a lot of her time going into a locked closet, "to slake herself once more with her own hands," so she can probe her body as lovingly as she will later probe sexy, spongy mosses.
The letter said that Rainey was blasted with scalding hot water in a locked closet-sized shower as a punishment at the state's Dade Correctional Institution in Miami.
Mankind took a leap in the dark through this latest technological "advance".Giorgio Cometto GenevaDifferent kinds of religion* SIR – You did not include the religious denomination of an anti-gay bishop in Africa ("A well locked closet", May 29th).
Stash it in a bedroom or locked closet, or safe.
Bad things happen to those who try to pick his locked closet for a look at the skeletons.
The only towels were hand towels, and the shower was down the hall, in a locked, windowless closet whose key I had to request at the front desk.
