How to sign: make a logical or causal connection
"I cannot connect these two pieces of evidence in my mind"; "colligate these facts"; "I cannot relate these events at all";
Similiar / Same: associate, relate, link, colligate, tie in, link up
Categories: cerebrate, cogitate, think
Within this category: correlate, free-associate, identify, interrelate, remember, think of
How to sign: plug into an outlet
"Please plug in the toaster!"; "Connect the TV so we can watch the football game tonight";
Similiar / Same: plug in
Categories: enter, infix, insert, introduce
How to sign: connect, fasten, or put together two or more pieces
"Can you connect the two loudspeakers?"; "Tie the ropes together"; "Link arms";
Similiar / Same: link, link up, tie
Within this category: attach, bond, bridge, daisy-chain, ground, hang together, hitch, interconnect, join, join, put through, tee, tie