英和和英

be connected

a connecting line

plugged in

a connecting shape

the parts coming into contact

reciprocally connected

Please connect …

a junction

connect to the earth

join the ends of

state of being disconnected

to be connected

You are connected

connect to a ground

Join hearts together

a difficult juncture

a plug consisting usually of a screw-shell body and cap and connecting a flexible conductor to a lamp holder or receptacle, called attachment plug

in grammar, a connective part of speech named conjunction

poor connectivity

have the connection undone

the first part of a series

Connection with an external system

to enchain two things―（犬なら）―chain up a dog―（罪人なら）―put a prisoner in chains

be interconnected, afford passage

a linked or connected series of objects

cause to become joined or linked

to put things into one

the act of interconnecting (wires or computers or theories etc.)

It could be a loose contact that is causing the problem.