1. To yield a profit or result
2. To inflict retribution on
3. To allow (a thread or rope) to run off a spool or drum
4. When something you do pays off, it is successful and is worth the effort you made.

1. To determine the number or amount of; SYN. number, enumerate.
2. To have weight; have import, carry weight; SYN. matter, weigh.
3. To include as if by counting.
4. To name or recite the numbers.
5. To put into a group; SYN. number.