Would all-big-gun battleships have had a different name if HMS Dreadnought had not appeared first?
Short answerPossibly: an earlier Italian completion might have made Dante Alighieri the naming ship, but Italy lacked the infrastructure to beat Britain.
NotesItaly's near-miss explains how the whole type might have acquired a different name. Vittorio Cuniberti had advocated a uniform heavy-calibre battleship years before HMS Dreadnought. Dante Alighieri developed from ideas discussed well before her 1909 construction, and an Italian start around 1903 might conceivably have produced the first completed ship. Italy lacked the maritime infrastructure and early decision needed to win that race. Dreadnought is therefore a contingent historical label attached to the country that converted the concept into a ship first.