Definition of ground verb from the Oxford Advanced American Dictionary

     

    ground

     verb
    verb
    NAmE//ɡraʊnd//
     
    see also grindVerb Forms present simple I / you / we / they ground
     
    ,
     
    he / she / it grounds
     
    ,
     
    past simple grounded
     
    ,
     
    -ing form grounding
     
    ,
     
     
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    boat
  1. 1 [transitive, intransitive] ground (something) when a boat grounds or something grounds it, it touches the bottom of the ocean and is unable to move The fishing boat was grounded on the rocks off the coast of Maine.
  2. aircraft
  3. 2 [transitive, often passive] ground something to prevent an aircraft from taking off The balloon was grounded by strong winds. All planes out of San Francisco are grounded because of fog.
  4. child
  5. 3[transitive, usually passive] ground somebody to punish a child by not allowing them to go out with their friends for a period of time You're grounded for a week!
  6. electricity
  7. 4 [transitive, usually passive] ground something to make electrical equipment safe by connecting it to the ground with a wire see also grounded, grounding
See the Oxford Advanced Learner's Dictionary entry: ground