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Definition of on preposition from the Oxford Advanced Learner's Dictionary

on

preposition
 
/ɒn/
 
/ɑːn/
For the special uses of on in phrasal verbs, look at the entries for the verbs. For example turn on somebody is in the phrasal verb section at turn.
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  1. in or into a position covering, touching or forming part of a surface
    • a picture on a wall
    • There's a mark on your skirt.
    • the diagram on page 5
    • Put it down on the table.
    • He had been hit on the head.
    • She climbed on to the bed.
    This could also be written: onto the bed
  2. supported by somebody/something
    • She was standing on one foot.
    • Try lying on your back.
    • Hang your coat on that hook.
  3. used to show a means of transport
    • He was on the plane from New York.
    • to travel on the bus/tube/coach
    • I came on my bike.
    • a woman on horseback
  4. by means of something; using something
    • She played a tune on her guitar.
    • The information is available on the internet.
    • We spoke on the phone.
    • What's on TV?
    • The programme's on Channel 4.
  5. used to show a day or date
    • He came on Sunday.
    • We meet on Tuesdays.
    • on May the first/the first of May
    • on the evening of May the first
    • on one occasion
    • on your birthday
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  6. used to describe an activity or a state
    • to be on business/holiday/vacation
    • The book is currently on loan.
  7. used to show direction
    • on the left/right
    • He turned his back on us.
  8. at or near a place
    • a town on the coast
    • a house on the Thames
    • We lived on an estate.
  9. used to show the basis or reason for something
    • a story based on fact
    • On their advice I applied for the job.
  10. immediately after something
    • On arriving home I discovered they had gone.
    • Please report to reception on arrival.
    • There was a letter waiting for him on his return.
  11. about something/somebody
    • a book on South Africa
    • She tested us on irregular verbs.
  12. used to show that somebody belongs to a group or an organization
    • to be on the committee/staff/jury/panel
    • Whose side are you on (= which of two or more different views do you support)?
  13. eating or drinking something; using a drug or a medicine regularly
    • He lived on a diet of junk food.
    • The doctor put me on antibiotics.
  14. paid for by something
    • to live on a pension/a student grant
    • to be on a low wage
    • You can't feed a family on £50 a week.
    • Drinks are on me (= I am paying).
  15. used when giving a phone number
    • You can get me on 020 7946 0887.
    • She's on extension 2401.
  16. used with some nouns or adjectives to say who or what is affected by something
    • a ban on smoking
    • He's hard on his kids.
    • Go easy on the mayo! (= do not take/give me too much)
  17. being carried by somebody; in the possession of somebody
    • Have you got any money on you?
  18. compared with somebody/something
    • Sales are up on last year.
  19. Word OriginOld English on, an, of Germanic origin; related to Dutch aan and German an, from an Indo-European root shared by Greek ana.
See on in the Oxford Advanced American DictionarySee on in the Oxford Learner's Dictionary of Academic English
sufficiently
adverb
 
 
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