on board

Idioms  

1. Joining in or participating, as in The department head addressed the new employees, saying “Welcome on board,” or The opera company has a new vocal coach on board to help the soloists. This expression alludes to being on or in a vessel, airplane, or other vehicle. [Colloquial; second half of 1900s]

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Example Sentences

Fast-forward to today, feasibility studies for the San Gabriel and Los Angeles river projects are complete, and the Ocean Cleanup is on board.

From Los Angeles Times • May 15, 2026

The cruise ship set off on its journey around the Pacific from Argentina on April 1, and the first infected passengers died on board on April 11.

From Los Angeles Times • May 14, 2026

The passengers and crew who were on board the MV Hondius will have spent 72 hours isolating at Arrowe Park Hospital in Wirral and will be expected to isolate for another 42 days at home.

From BBC • May 13, 2026

Netflix has been eager to add more live sports to its platform as a way to attract major advertisers and keep subscribers on board.

From The Wall Street Journal • May 13, 2026

Lunging for a door, I leap on board, trip, and tumble into the lap of a seated gentleman.

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

Related Words

• engaged
• hired
• occupied