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on (A1)

preposition/adverb

Pronunciation: /ɒn/, /ɔːn/

Used to show that something is in contact with a surface or that a device is working.

on time (collocation): Exactly at the planned time. — "The bus arrived on time."
on the... (prepositional phrase): Indicating location on a surface or object. — "The cat is on the roof."
on... (prepositional phrase): Indicating a day or date. — "We met on Sunday."
turn on (phrasal verb): To start a machine or light. — "Can you turn on the fan?"
go on (phrasal verb): To continue happening or doing something. — "The show must go on."

Words with a similar meaning to on:

Words with the opposite meaning to on: