join — to bring in contact, connect, or bring or put together: to join hands; to join pages with a staple.
unite — to join, combine, or incorporate so as to form a single whole or unit.
dedicate — If you say that someone has dedicated themselves to something, you approve of the fact that they have decided to give a lot of time and effort to it because they think that it is important.
marry — to take in marriage: After dating for five years, I finally asked her to marry me.
ally — A country's ally is another country that has an agreement to support it, especially in war.
associate — If you associate someone or something with another thing, the two are connected in your mind.
blend — If you blend substances together or if they blend, you mix them together so that they become one substance.
coalesce — If two or more things coalesce, they come together and form a larger group or system.
combine — If you combine two or more things or if they combine, they exist together.
connect — If something or someone connects one thing to another, or if one thing connects to another, the two things are joined together.
couple — If you refer to a couple of people or things, you mean two or approximately two of them, although the exact number is not important or you are not sure of it.
fuse — Electricity. a protective device, used in an electric circuit, containing a conductor that melts under heat produced by an excess current, thereby opening the circuit. Compare circuit breaker.
interweave — to weave together, as threads, strands, branches, or roots.
yoke — a device for joining together a pair of draft animals, especially oxen, usually consisting of a crosspiece with two bow-shaped pieces, each enclosing the head of an animal. Compare harness (def 1).