I was chastised on BBC Have your say for calling the official with the flag the assistant referee and not by the correct term of referee's assistant.😀
I am sure my primary school headmaster the late Mr G.D Green from Sunderland who ran the line in Football League fixtures in the fifties and sixties would have been the first to correct me.
Assistant referee, referee's assistant; " either either, neither neither, let's call the whole thing off " and go back to calling them linos.
I certainly agree we could / can / should call them Linos, but Assistant Referee
is the correct term, according to Law 6.