Meaning of the word self-defense in English

What does self-defense mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

self-defense

US /ˌself.dɪˈfens/
UK /ˌself.dɪˈfens/
"self-defense" picture

Noun

the protection of oneself or one's property from physical harm

Example:
She took a self-defense class to feel safer walking home at night.
The lawyer argued that his client acted in self-defense.