Meaning of “self-defence” in the English Dictionary

british dictionary

"self-defence" in British English

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self-defencenoun [ U ]

UK US self-defense uk /ˌself.dɪˈfens/ us /ˌself.dɪˈfens/

protection of yourself, either by fighting or discussion:

He used the gun in self-defence.
In self-defence, I have to say that I only did what you asked me to do.

the skill of fighting without weapons to protect yourself:

She goes to self-defence classes for women.

(Definition of “self-defence” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)