Definition of lap noun from the Oxford Advanced American Dictionary

     

    lap

     noun
    noun
    NAmE//læp//
     
     
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  1. 1[usually singular] the top part of your legs that forms a flat surface when you are sitting down There's only one seat so you'll have to sit on my lap. She sat with her hands in her lap.
  2. 2 one trip from the beginning to the end of a track used for running, a lane used for swimming, etc. the fastest lap on record She has completed six laps. Two people passed him on the final lap. to do a victory lap (= go around the track again to celebrate winning)
  3. 3 a section of a trip, or of a piece of work, etc. They're off on the first lap of their round-the-world tour. We're almost finished with this proposal. We're on the last lap now.
  4. Idioms
    drop/dump something in somebody's lap(informal)
     
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    to make something the responsibility of another person They dropped the problem back in my lap.
    something drops/falls into somebody's lap
     
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    somebody has the opportunity to do something pleasant without having to make any effort My dream job just fell into my lap.
    in the lap of luxury
     
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    in easy, comfortable conditions, and enjoying the advantages of being rich We spent two weeks in the hotel living in the lap of luxury.
See the Oxford Advanced Learner's Dictionary entry: lap