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English definition of “on”

on

adverb (TRAVEL)    /ɒn/ US  /ɑːn/
B1 into a bus, train, plane, etc., or in the correct position to start using some other method of travelling: The train suddenly started moving as I was getting on. Her horse galloped off as soon as she was on.On or off Grammar:On, ontoOn and onto are prepositions.See more
(Definition of on adverb (TRAVEL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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