Meaning of the word "contingency plan" in English

What does "contingency plan" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

contingency plan

US /kənˈtɪndʒənsi plæn/
UK /kənˈtɪndʒənsi plæn/

Noun

a plan that is made for a future event or circumstance that is possible but cannot be predicted with certainty

Example:
We need a contingency plan in case the main server goes down.
Always have a contingency plan for unexpected problems.