What is the meaning of the word "assume"?

Definitions:

to make a pretence of verb
- The athlete assumed indifference, even though they were seething with anger.
to occupy or take on verb
- The yogi assumed the lotus position.
to seize and take control without authority and possibly with force verb
- I assumed control of the company.
to take on a certain form, attribute, or aspect verb
- The angel assumed the shape of a lion.
to take on titles, offices, duties, or responsibilities verb
- When will the new President assume office?
to take to be the case or to be true verb
- I can only assume what you are saying is true, as I was not there.
to take up someone's soul into heaven verb
- This is the day when May was assumed into heaven.