rush in WordNet English dictionary

1. the swift release of a store of affective force
   "they got a great bang out of it"; "what a boot!"; "he got a quick rush from injecting heroin"; "he does it for kicks"
   bang  boot  charge  rush  flush  thrill  kick 
   
2. the act of moving hurriedly and in a careless manner
   "in his haste to leave he forgot his book"
   haste  hurry  rush  rushing 
   
3. (American football) an attempt to advance the ball by running into the line
   "the linebackers were ready to stop a rush"
   rush  rushing 
   
4. a sudden forceful flow
   rush  spate  surge  upsurge 
   
5. a sudden burst of activity
   "come back after the rush"
   rush 
   
6. grasslike plants growing in wet places and having cylindrical often hollow stems
   rush 
   

1. move fast
   "He rushed down the hall to receive his guests"; "The cars raced down the street"
   rush  hotfoot  hasten  hie  speed  race  pelt along  rush along  cannonball along  bucket along  belt along  step on it 
   
2. act or move at high speed
   "We have to rush!"; "hurry--it's late!"
   rush  hasten  hurry  look sharp  festinate 
   
3. cause to occur rapidly
   "the infection precipitated a high fever and allergic reactions"
   induce  stimulate  rush  hasten 
   
4. urge to an unnatural speed
   "Don't rush me, please!"
   rush  hurry 
   
5. cause to move fast or to rush or race
   "The psychologist raced the rats through a long maze"
   race  rush 
   
6. attack suddenly
   rush 
   
7. run with the ball, in football
   rush 
   

1. not accepting reservations
   first-come-first-serve  rush 
   
2. done under pressure
   "a rush job"
   rush  rushed