To join for a common purpose or in a common action.
In probability theory, to work out the chances of two or more events occurring at the same time.

1. To become part of; become a member of a group or organization; SYN. fall in, get together.
2. To cause to become joined or linked; SYN. bring together.
3. To come into the company of.
4. To make contact or come together; SYN. conjoin.

To become one; SYN. unite, merge.

1. To act in concert or unite in a common purpose or belief; SYN. unify.
2. To have or possess in combination; SYN. combine.
3. To join or combine; SYN. unify, merge.