B2 [ I or T, usually + adv/prep ] to (cause to) go or do something very quickly:

[ T ] If a group of people rush an enemy or the place where an enemy is, they attack suddenly and all together:

[ I ] In American football, to rush is to carry the ball forward across the place on the field where play begins. Also, a member of the opposite team rushes when they force their way to the back of the field quickly to catch the player carrying the ball.

B2 [ S ] a situation in which you have to hurry or move somewhere quickly:

C2 [ S ] a time when a lot of things are happening or a lot of people are trying to do or get something:

C2 [ S ] the act of suddenly moving somewhere quickly:

[ S ] a sudden movement of people to a certain area, usually because of some economic advantage:

[ C ] in American football, an attempt to run forwards carrying the ball, or an attempt to quickly reach and stop a player from the opposing team who is carrying the ball

[ S ] a sudden strong emotion or physical feeling:

[ C usually plural ] a plant like grass that grows in or near water and whose long, thin, hollow stems can be dried and made into floor coverings, containers, etc.: