1. To move with great haste into something or some place. Cold air rushed into the car as I opened the window. The shoppers began rushing into the mall the moment it was opened to take advantage of the Black Friday sales.

2. To cause, compel, or force one to move into something or some place with great haste. In this usage, a noun or pronoun is used between "rush" and "into." Security rushed the president into the building after the first shot smashed into the table. The worker at the station rushed us into the train so that it could depart on time.

3. To act carelessly or recklessly; to undertake something without proper consideration or preparation. I wouldn't rush into any deal like that with him, if I were you—you don't know this guy too well, so who's to say he won't screw you over? Michelle's always been that way, though. She rushes into these things and buys whatever catches her eye, rather than considering what makes the most sense.