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

The most common answer is mononucleosis (13 letters).

Crossword clue: another word for mono

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

mononucleosis 13 letters gen-syn

an acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or mo

monophonic 10 letters gen-syn

designating sound transmission or recording or reproduction over a single channel

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