on board
US /ɑːn bɔːrd/
UK /ɑːn bɔːrd/

1.
2.
합류하여, 동참하여
as part of a group or team, especially for a new project or initiative
:
•
We're excited to have her on board for the new marketing campaign.
새로운 마케팅 캠페인에 그녀가 합류하게 되어 기쁩니다.
•
The management needs to get everyone on board with the new policy.
경영진은 새로운 정책에 모든 사람을 동참시켜야 한다.