dollar

(noun) the basic monetary unit in many countries; equal to 100 cents.

(noun) a piece of paper money worth one dollar. Synonyms: dollar bill, one dollar bill, buck, clam.

(noun) a United States coin worth one dollar. Example: "The dollar coin has never been popular in the united states."

(noun) a symbol of commercialism or greed. Synonyms: dollar mark, dollar sign. Examples: "He worships the almighty dollar." "The dollar sign means little to him."