Meaning of the word "at all cost" in English

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

at all cost

US /æt ɔːl kɔst/
UK /æt ɔːl kɒst/

Idiom

whatever it takes; no matter how much effort, expense, or sacrifice is involved

Example:
We must finish this project at all cost.
She was determined to win the competition at all cost.