He climbed 'aboard' just as the train was leaving.
Everyone 'aboard' was injured in the accident.
She got 'aboard' [='on board'] the train.
(..) Do you like children? What do you mean? All the time? Even when they're nuts? - Hmm. - Uh, I certainly do. Welcome aboard, Simpson. Pending your successful completion of our training program, that is. - What is it now, Simpson? - Uh, when do we get paid? Not a dime till Christmas Eve! (..)1989 TvShow: The Simpsons Title: Simpsons Roasting on an Open Fire Season: 1 Episode 1