assume

verb5

1. •
   To take on a position, duty or form.

   • Mr. Jones will assume the position of a lifeguard until a proper replacement is found.
2. •
   to believe that something is true even though there is no proof

   • We assume that, as her parents were dentists, she knows quite a bit about dentistry.
3. •
   To adopt (an idea or cause).
4. •
   To adopt a feigned quality or manner; to claim without right; to arrogate.

   • He assumed an air of indifference.
5. •
   To receive, adopt (a person).

   • The sixth was a young knight of lesser renown and lower rank, assumed into that honorable company. — 1819