No, that would be "Time Victory".So "Victory Condition: Score" does not mean you have to win by having the highest score in 2050 (or whenever the last turn is) but can win in any you choose?
"Score" indeed means any victory condition you like (Dom is the most straightforward, but it could be anything else like Space or Diplo), only this time it is not the finish date which is taken into account, but the score.