Definition of

Get on

  1. (verb, change) grow old or older
    we age every day--what a depressing thought!
    Young men senesce
  2. (verb, change) develop in a positive way
    My plants are coming along
    Plans are shaping up
  3. (verb, change) appear in a show, on T.V. or radio
  4. (verb, motion) grow late or (of time) elapse
  5. (verb, motion) get up on the back of
  6. (verb, motion) get on board of (trains, buses, ships, aircraft, etc.)
  7. (verb, social) have smooth relations

via WordNet, Princeton University

Antonyms of Get on

get off

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