safetylock

noun
UK /ˈseɪfti lɒk/
US /ˈseɪfti lɑːk/

A safety lock is a special lock that keeps something closed so people cannot get hurt.

The cabinet has a safety lock so children cannot open it.


OTHER MEANINGS

2. A locking device on a machine that stops it from starting by accident.

The factory machine has a safety lock that must be released before it runs.

3. A lock on a firearm that prevents it from being fired.

He keeps a safety lock on his gun at all times.

4. A feature on a vehicle or appliance that stops children from opening doors or buttons.

The car's rear doors have a safety lock for kids.