1. Get temporarily; "May I borrow your lawn mower?".[Wordnet]
2. Take up and practice as one's own.[Wordnet]
3. To receive from another as a loan, with the implied or expressed intention of returning the identical article or its equivalent in kind; -- the opposite of lend.[Websters]
4. To take (one or more) from the next higher denomination in order to add it to the next lower; -- a term of subtraction when the figure of the subtrahend is larger than the corresponding one of the minuend.[Websters]
5. To copy or imitate; to adopt; as, to borrow the style, manner, or opinions of another.[Websters]
6. To feign or counterfeit.[Websters]
7. To receive; to take; to derive.[Websters]
8. Base verb from the following inflections: borrowing, borrowed, borrows, borrower, borrowers, borrowingly and borrowedly.[Eve - graph theoretic]