2. To take on, become responsible for, take care of: The new buyer will assume the mortgage on the house.
2. To rely on too much: Lora wants to presume on Dylan's writing talents to compile her memoirs.
These words have related but distinguishable meanings
To assume is to take for granted, to infer without proof: "Mrs. Blake assumed that her husband had paid the bill."
To presume is to believe something to be a fact: to infer as true without actual proof to the contrary.
When Stanley came upon another explorer in Africa, he didn't say "Dr. Livingstone, I assume" but "Dr. Livingstone, I presume?" This was because circumstances clearly indicated that the man he was meeting could be no one else.
In ordinary conversation; however, the words may be used interchangeably.
Please, do not presume to second guess what Candice is going to say. She only wants to assume responsibility for her exact words.
Since Mark's firm is prosperous and his work has been very good, he presumes that he will be getting a raise very soon.
2. To behave so inconsiderably, disrespectfully, or over confidently as to do something without being entitled or qualified to do it; usually used in a negative sense: Sarah's fiancé presumed to be very important, bold, and shameless in her mother's home!