-mu Godan/u-verb

1. to bite
2. to chew; to gnaw; to masticate
3. to fumble one's words (esp. during a play, broadcast, etc.); to falter with one's words; to stutter; to stammer
4. to crash against (e.g. of waves); to break onto (shore)
5. to engage (of cogs, zippers, etc.); to mesh; to fit together
6. to be involved in
7. archaic to convince; to persuade (used by Edo period prostitutes)