A fortified room serving as a safe hiding place for the inhabitants of a building in the event of a break-in or emergency.

Confidently, because one is certain that something relevant to the situation is true.

Capable of being washed in a dishwasher without being damaged.

(television) The area of a television image that is expected to be viewable on all television screens, including old ones that typically crop the borders of the image.

Alternative spelling of safecracker

plural of safe seat

A ventilated cupboard used to keep meat away from flies and other pests. / (boxing, slang, obsolete) The stomach.

Alternative form of play it safe

(idiomatic) In the possession of, or protected by, someone who can be trusted.

plural of safe harbour