Definition of pat noun from the Oxford Advanced Learner's Dictionary

     

    pat

     noun
    noun
    BrE BrE//pæt//
     
    ; NAmE NAmE//pæt//
     
     
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  1. 1[usually singular] a gentle friendly touch with your open hand or with a flat object a pat on the head He gave her knee an affectionate pat. He gave the dog a pat.
  2. 2pat of butter a small, soft, flat lump of butter baked potatoes with a pat of butter and a sprinkle of paprika see also cowpat
  3. Word Originnoun late Middle English (as a noun denoting a blow with something flat): probably imitative. The verb dates from the mid 16th cent.Idioms
    a pat on the back (for something/for doing something)
     
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    (informal) praise or approval for something that you have done well He deserves a pat on the back for all his hard work. Give yourself a pat on the back!
See the Oxford Advanced American Dictionary entry: pat