What is the meaning of the word "assist"?

Definitions:

in sports, the act of enabling another player to make a good play noun
- I had ten assists in the last game.
the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose noun
- I gave them an assist with the housework.
to act as an assistant in a subordinate or supportive function verb
- I assisted my boss with the presentation.
to give help to verb
- We assisted in the operation.
to work for or be a servant to verb
- I assist the manager as part of my duties.