Meaning of sugar

Definition of sugar

(noun) a white crystalline carbohydrate used as a sweetener and preservative
an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain
informal terms for money
(verb) sweeten with sugar; "sugar your tea"

Other information on sugar

WIKIPEDIA results for sugar
Amazon results for sugar