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

The most common answer is sulfa (5 letters).

Crossword clue: another word for sulpha

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

sulfa 5 letters gen-syn

antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that

sulfonamide 11 letters gen-syn

antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that

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