A Sugar

(uncountable) Sucrose in the form of small crystals, obtained from sugar cane or sugar beet and used to sweeten food and drink.
(countable) A specific variety of sugar.
(countable, chemistry) Any of various small carbohydrates that are used by organisms to store energy.

Hypernyms: carbohydrate

(countable) A small serving of this substance (typically about one teaspoon), used to sweeten a drink.
(countable) A term of endearment.

Synonyms: sweetheart

(countable, slang) A kiss. Synonyms: buss
(chiefly southern US, slang, uncountable) Effeminacy in a male, often implying homosexuality.
(uncountable, informal) Diabetes.
(dated) Anything resembling sugar in taste or appearance, especially in chemistry.
Compliment or flattery used to disguise or render acceptable something obnoxious; honeyed or soothing words.
(US, slang, uncountable) Heroin.

Synonyms: heroin

(US, slang, uncountable, dated) Money.
(programming) Syntactic sugar.