To take part in something, to take part in the achievment of something.
contribute to some cause; "I gave at the office"
be conducive to; "The use of computers in the classroom lead to better writing"
of a quality, as in: "Her presence lends a certain cachet to the company"; "The music added a lot to the play"; "She brings a special atmosphere to our meetings"; "This adds a light note to the program"
provide; "The city has to put up half the required amount"
bestow a quality on; "Her presence lends a certain cachet to the company"; "The music added a lot to the play"; "She brings a special atmosphere to our meetings"; "This adds a light note to the program"