Noun

1. The activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
2. A person who contributes to the fulfillment of a need or furtherance of an effort or purpose
3. A resource
4. A means of serving

Verb

1. Give help or assistance; be of service
2. Improve the condition of
3. Be of use
4. Abstain from doing; always used with a negative
5. Help to some food; help with food or drink
6. Contribute to the furtherance of
7. Take or use
8. Improve; change for the better