1.
If something, for example a car, ploughs into something else, it goes out of control and crashes violently into it.
A young girl and her little brother were seriously hurt when a car ploughed into them on a crossing.
PHRASAL VERB: V P n
2.
If you say that money is ploughed into something such as a business or a service, you are emphasizing that the amount of money which is invested in it or spent on it in order to improve it is very large. (BUSINESS)
Huge sums of private capital will be ploughed into the ailing industries of the east...
He claimed he ploughed all his money into his antique business.
PHRASAL VERB: be V-ed P n/-ing, V n P n/-ing emphasis