to give (money, time, knowledge, assistance, etc.) to a common supply, fund, etc., as for charitable purposes.

to furnish (an original written work, drawing, etc.) for publication

to contribute stories to a magazine.

to give (money, food, etc.) to a common supply, fund, etc.

He contributes to many charities.

to furnish works for publication

He contributed to many magazines.

contribute to

to be an important factor in; help to cause

A sudden downpour contributed to the traffic jam.