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

The most common answer is mop (3 letters).

Crossword clue: another word for swab

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

mop 3 letters gen-syn

to wash or wipe with or as if with a mop

swob 4 letters gen-syn

cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

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