George Borrow

In finance, monetary debt

In language, the use of loanwords

David Borrow

In music, the use of borrowed chords

In arithmetic, when a digit become smaller than limit and the deficiency is taken from the next digit to the left

Nik Borrow, bird artist

Borrow or borrowing can mean: to receive (something) from somebody temporarily, expecting to return it.

In the Discworld fictional universe - "the art of overlaying one's hi mind on the mind of another creature so that she can see through its eyes and steer its actions" as practised by the character Granny Weatherwax