I would assume runway threshold, in Europe there isn’t anything standard like that. We usually have a circuit area, within the circuit area the call should be “callsign, final, for landing / touch and go” when approaching from outside the circuit area we call “long final” instead of “final”. You could always add the position by adding the amount of miles from threshold of course. But here we don’t call standard 5 or 10 miles. You can also call “short final” to warn someone that you are on final at uncontrolled airfields or to remind ATC you are waiting for landing clearance.