Definitions of rush:

• noun:   (American football) an attempt to advance the ball by running into the line

  Example: "The linebackers were ready to stop a rush"

• noun:   a sudden burst of activity

  Example: "Come back after the rush"

• noun:   a sudden forceful flow
• noun:   physician and Revolutionary American leader; signer of the Declaration of Independence (1745-1813)
• noun:   grasslike plants growing in wet places and having cylindrical often hollow stems
• noun:   the act of moving hurriedly and in a careless manner
• noun:   the swift release of a store of affective force

  Example: "He got a quick rush from injecting heroin"

• verb:   step on it

  Example: "He rushed down the hall to receive his guests"

• verb:   run with the ball, in football
• verb:   urge to an unnatural speed

  Example: "Don't rush me, please!"

• verb:   act or move at high speed

  Example: "We have to rush!"

• verb:   attack suddenly
• verb:   cause to move fast or to rush or race
• verb:   cause to occur rapidly
• adjective:   not accepting reservations
• name:  A surname (common: 1 in 5882 families; popularity rank in the U.S.: #706)