What is the meaning of the word "get"?

Definitions:

acquire as a result of some effort or action verb
- You cannot get water out of a stone
come to have or undergo a change of physical features and attributes verb
- they joined the exercise class to get fit
evoke an emotional response verb
- Brahms's `Requiem' gets me every time
give certain properties to something verb
- get someone mad
go through (mental or physical states or experiences) verb
- get an idea
irritate or annoy verb
- Their childish behavior really gets to me.
purchase verb
- What did you get at the toy store?
reach by calculation verb
- What do you get when you add up these numbers?
take vengeance on or get even verb
- We'll get them!