Meaning of the word "get on board with" in English

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

get on board with

US /ɡɛt ɑn bɔrd wɪθ/
UK /ɡɛt ɒn bɔːd wɪð/

Idiom

to agree with or accept an idea, plan, or proposal

Example:
We need everyone to get on board with the new strategy.
It took some convincing, but eventually, she got on board with the plan.