Connect

(of an object) To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object.

"I think this piece connects to that piece over there."

(of two objects) To join: to attach, or to be intended to attach or capable of attaching, to each other.

"Both roads have the same name, but they don't connect: they're on opposite sides of the river, and there's no bridge there."

(of an object) To join (two other objects), or to join (one object) to (another object): to be a link between two objects, thereby attaching them to each other.

"The new railroad will connect the northern part of the state to the southern part."

(of a person) To join (two other objects), or to join (one object) to (another object): to take one object and attach it to another.

"I connected the printer to the computer, but I couldn't get it work."