A helicopter crashed into a building in Panama City on Thursday, killing 11 of the 12 people aboard, including Chile's federal police chief, a Panamanian government official said.


Can I replace aboard with onboard without change of meaning?

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Comments  (Page 3) 


These are both a nautical terms that predate planes, trains and automobiles. Aboard refers to a living thing entering a vessel; on-board (or on board / onboard) refers to cargo being brought onto a vessel.

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Correct:- The ink flew aboard on an Apollo Spacecraft.

(I am Just Guessing)

Thank you very much! Finally a good explanation for this.

Just a little side note, N.B. translates from Latin as note well but its original extended form is Nota bene not Note bene.