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



    BrE BrE//ˈʃʊɡə(r)//
    ; NAmE NAmE//ˈʃʊɡər//
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  1. 1   [uncountable] a sweet substance, often in the form of white or brown crystals, made from the juices of various plants, used in cooking or to make tea, coffee, etc. sweeter a sugar plantation/refinery/bowl This juice contains no added sugar. Do you take sugar (= have it in your tea, coffee, etc.)? see also brown sugar, cane sugar, caster sugar, granulated sugar, icing sugar
  2. 2   [countable] the amount of sugar that a small spoon can hold or that is contained in a small cube, added to tea, coffee, etc. How many sugars do you take in coffee?
  3. 3 [countable, usually plural] (specialist) any of various sweet substances that are found naturally in plants, fruit, etc. fruit sugars a person’s blood sugar level (= the amount of glucose in their blood)
  4. 4[uncountable] (informal, especially North American English) a way of addressing somebody that you like or love See you later, sugar.
  5. Word OriginMiddle English: from Old French sukere, from Italian zucchero, probably via medieval Latin from Arabic sukkar.Extra examples Add 1 cup of white sugar and boil until dissolved. Add one cup of soft brown sugar. Bring to a boil to dissolve the sugar. Do you take sugar in your tea? Fructose is a fruit sugar. Fruit juices contain natural sugars. He stirred another spoonful of sugar into his tea. Most junk food is high in sugar. a high sugar intake apple juice with no added sugar simple sugars, such as glucose to raise blood sugar levels
See the Oxford Advanced American Dictionary entry: sugar