- ABOARD
- Half a conductor's cry
- Having embarked
- On deck
- Riding
- Word after "welcome" on a cruise ship's loudspeaker
- On the train
- On the bus
- Entrained
- All ___!
- On the plane
- On ship
- Ready to be shipped
- On base, in baseball
- On, as a plane
- On the ship
- On a plane, train, or bus
- All ___! (conductor's call)
- On base
- On a plane, say
- Ready to travel
- On a ship
- See 38-Across
- End of a conductor's shout
- On the ferry
- Back from shore leave
- On deck, for example
- On deck, say
- All __!
- On a train
- On
- On the boat
- One way to hop
- Being trained, say
- In a train or plane
- Up in the air, perhaps
- Having not missed the bus
- On a train or plane
- On the wagon?
- Ready to sail.
- In stateroom or sleeper.
- On a jet.
- Conductor's word
- Welcome ___
- Ready to go
- On Old Ironsides
- Having entrained
- On the jet
- On a windjammer
- On the Constitution
- Word in Amtrak's slogan
- All ___! (conductor's cry)
- As part of a company
- No longer waiting on the pier
- Alongside, nautically
- On the bus, e.g.
- On the plane, e.g.
- On the ship, e.g.
- All ___: A Tribute to Johnny Cash
- No longer on the platform
- All _____!
- On, as the train
- Word with welcome or all
- Using a plane, train or bus
- On an airplane
- On a plane
- On a ship, train or plane
- In a train berth
- Alphabetically first preposition, per most lists
- In agreement
- Part of a conductor's cry
- Ready to cruise
- A passenger on
- All --!
- Across the gangplank
- Off the gangplank
- On the way, in a way
- On the liner
- Into the company
- Ready for departure
- Situated on a plane