Contribute

To give or grant i common with others; to give to a common stock or for a common purpose; to furnish or suply in part; to give (money or other aid) for a specified object; as, to contribute food or fuel for the poor.

To give a part to a common stock; to lend assistance or aid, or give something, to a common purpose; to have a share in any act or effect.

To give or use one's power or influence for any object; to assist.

contribute to some cause; "I gave at the office"