English

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

      

    lemon

     noun
    noun
    BrE BrE//ˈlemən//
     
    ; NAmE NAmE//ˈlemən//
     
    Fruit
     
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  1. 1   [countable, uncountable] a yellow citrus fruit with a lot of sour juice. Slices of lemon and lemon juice are used in cooking and drinks. lemon tea a gin and tonic with ice and lemon Squeeze the juice of half a lemon over the fish. a lemon tree Garnish the fish with wedges of lemon. See related entries: Fruit
  2. 2   [uncountable, countable] lemon juice or a drink made from lemon see also bitter lemon
  3. 3   (also lemon yellow) [uncountable] a pale yellow colour More Like This Colour compounds baby blue, china-blue, cobalt blue, electric blue, ice-blue, midnight blue, navy blue, peacock blue, petrol blue, powder blue, royal blue, sky-blue blood-red, cherry red, pillar-box red, wine red bottle-green, emerald green, jade green, lime green, olive-green, pea-green, sea-green lemon yellow, primrose yellow lily-white, snow-white coal-black, jet black, pitch-black charcoal grey, iron-grey, slate-grey rose pink, salmon pink, shocking pink nut-brownSee worksheet.
  4. 4[countable] (informal, especially North American English) a thing that is useless because it does not work as it should synonym dud
  5. 5[countable] (British English) a stupid person
  6. synonym idiot
    Word Origin Middle English: via Old French limon (in modern French denoting a lime) from Arabic līmūn (a collective term for fruits of this kind); compare with lime (the fruit).
See the Oxford Advanced American Dictionary entry: lemon