Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “on”


preposition (MONEY)    /ɒn/ US  /ɑːn/
A2 used to show something for which a payment is made: He spent £80 on a hat. I've wasted a lot of money on this car. We made a big profit on that deal. How much interest are you paying on the loan?Paying and spending money Grammar:On, ontoOn and onto are prepositions.See more
(Definition of on preposition (MONEY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of on

Definitions of “on” in other dictionaries

Word of the Day


friendly or helpful

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More