How many letters does the top answer for “city in roman republic” have?

The most common answer is byzantium (9 letters).

Crossword clue: city in roman republic

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

byzantium 9 letters wd-fact-v3

a continuation of the Roman Empire in the Middle East after its division in 395

ephesus 7 letters wd-fact-v3

the third ecumenical council in 431 which declared Mary as mother of God and condemned Pelagius

city in dominican republic 50% similar → comendador, laromana, lavega

city in republic of abkhazia 50% similar → gali, sokhumi, tkvarcheli

city in republic of ancona 50% similar → republicofancona

city in republic of the congo 50% similar → brazzaville, dolisie, ouesso

city in roman britain 50% similar → eboracum

city in roman empire 50% similar → byzantium, ephesus

city in russian republic 50% similar → aneniinoi, ribnita

city in weimar republic 50% similar → strzelcekrajenskie