lock
/lɒk/ or /lɔk/; /ˈlɒk/ or /ˈlɔk/ for the verb
Definitions
1. noun
a device for fastening or unlocking something, typically consisting of a bolt or bar that can be turned or lifted
“She turned the key in the lock and opened the door.”
2. noun
a person or thing that secures or holds something in place
“The lock on the wheel kept the car from rolling away.”
3. verb
to fasten or secure something with a lock
“Can you lock the cabinet for me?”
4. verb
to be unable to change or modify something
“The company’s profits are locked into the current economic conditions.”