What does PART mean?

noun

1. something determined in relation to something that includes it“he wanted to feel a part of something bigger than himself”
2. something less than the whole of a human artifact“the rear part of the house”
3. a portion of a natural object“they analyzed the river into three parts”
4. that which concerns a person with regard to a particular role or situation“it requires vigilance on our part”
5. the extended spatial location of something“the farming regions of France”
6. the actions and activities assigned to or required or expected of a person or group“the function of a teacher”
7. an actor's portrayal of someone in a play“she played the part of Desdemona”
8. assets belonging to or due to or contributed by an individual person or group“he wanted his share in cash”