Meaning of the word self-possession in English

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

self-possession

US /ˌself-pəˈzeʃ.ən/
UK /ˌself-pəˈzeʃ.ən/

Noun

calmness and control of one's feelings and actions, especially in a difficult situation

Example:
Despite the chaos, she maintained her self-possession.
His remarkable self-possession allowed him to handle the crisis effectively.