1.To join, or fasten together, as by something intervening; to associate; to combine; to unite or link together; to establish a bond or relation between. "He fills, he bounds, connects and equals all." "A man must see the connection of each intermediate idea with those that it connects before he can use it in a syllogism."
2.To associate (a person or thing, or one's self) with another person, thing, business, or affair.
3.To establish a communication link; used with with; as, his telephone didn't answer, so I connected with him by email.
4.To electronically or mechanically link (a device) to another device, or to link a device to a common communication line; used with with; as, the installer connected our telephones on Monday; I connected my VCR to the TV set by myself; the plumber connected a shut-off valve to my gas line.