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

The most common answer is boneset (7 letters).

Crossword clue: another word for agueweed

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

boneset 7 letters gen-syn

perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine

thoroughwort 12 letters gen-syn

perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine

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