(~s)
Frequency: The word is one of the 3000 most common words in English.
1.
In a machine or piece of equipment, a ~ is a part, often consisting of a set of smaller parts, which performs a particular function.
...the locking ~...
A bomb has been detonated by a special ~.
N-COUNT: usu sing, with supp
2.
A ~ is a special way of getting something done within a particular system.
There’s no ~ for punishing arms exporters who break the rules.
N-COUNT: with supp
3.
A ~ is a part of your behaviour that is automatic and that helps you to survive or to cope with a difficult situation.
...a survival ~, a means of coping with intolerable stress.
N-COUNT: with supp
4.
see also defence ~