Used when someone joins a group and contributes to its goals.

New Membership

Implies an active role after joining, not just attendance.

Start Participating

Collocations with 'on board' can hint at the process or status of joining.

Refers to physically being inside a form of transportation.

Often used during pre-departure safety instructions.

Commonly found in the context of travel and transportation announcements.

Indicates that someone agrees with a plan or proposal.

Shows unity in a team's opinion or decision.

It is informal, signaling casual or personal agreement.