to consider, put in, (a person, thing) as part of he whole

contain, involve

to put, fit, place, (something) (in, into, between etc)

put, tuck in

to make (a remark etc) suddenly between statements made by another

throw in; interrupt

to make (a comment), put forward (an object etc) as an interference

interrupt

(to cause oneself, something) to enter when not invited or wanted

trespass, interrupt

(of a speaker, what is said etc) to speak about (a person, thing); to be relevant to; to turn to, go to, (a person, thing) for information etc

mention

an occasion when workers continue to work in a factory etc that is threatened with closure

contain, involve