Assume

From Latin assÅ«mÅ ("accept, take"), from ad- ("to, towards, at") + sÅ«mÅ ("take up, assume").

Full definition of assume

To authenticate by means of belief; to surmise; to suppose to be true, especially without proof.
We assume that, as her parents were dentists, she knows quite a bit about dentistry.

2013-06-14, Jonathan Freedland, Obama's once hip brand is now tainted, Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet. Perhaps we assume that our name, address and search preferences will be viewed by some unseen pair of corporate eyes, probably not human, and don't mind that much.

To take on a position, duty or form.
Mr. Jones will assume the position of a lifeguard until a proper replacement is found.

Alexander Pope (1688-1744)Trembling they stand while Jove assumes the throne.
1893, Walter Besant, The Ivory Gate Chapter Prologue, Such a scandal as the prosecution of a brother for forgeryâ€”with a verdict of guiltyâ€”is a most truly horrible, deplorable, fatal thing. It takes the respectability out of a family perhaps at a critical moment, when the family is just assuming the robes of respectability:...it is a black spot which all the soaps ever advertised could never wash off.
2012, August 5, Nathan Rabin, TV: Review: THE SIMPSONS (CLASSIC): â€œI Love Lisaâ€ (season 4, episode 15; originally aired 02/11/1993), So while Ralph generally seems to inhabit a different, more glorious and joyful universe than everyone else here his yearning and heartbreak are eminently relateable. Ralph sometimes appears to be a magically demented sprite who has assumed the form of a boy, but heâ€™s never been more poignantly, nakedly, movingly human than he is here.

Sir Walter Scott (1771-1832)The sixth was a young knight of lesser renown and lower rank, assumed into that honorable company.