Join (verb)

1. Connect (two or more things) together so that they become attached.
2. Combine or unite (people or organizations) to form a single entity.
3. Become a member of (a group or organization).
4. Participate or take part in (an activity or event).
5. Be present or located at the same place as someone or something else.

Origin:

Middle english: from old french joindre, from latin jungere "to join".

Examples:

1. Join these two pieces of wood together.
2. The companies joined forces.
3. She joined the club.
4. They joined the parade.
5. They joined the group.
6. She joined the party.