How many letters does the top answer for “another word for balthazar” have?

The most common answer is caspar (6 letters).

Crossword clue: another word for balthazar

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

caspar 6 letters gen-syn

(New Testament) one of the three sages from the east who came bearing gifts for the infant Jesus

gaspar 6 letters gen-syn

(New Testament) one of the three sages from the east who came bearing gifts for the infant Jesus

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase