1. to be mixed up with, to have a connection with (a troublesome matter)

intransitive verb Godan verb with 'u' ending word usually written using kana alone

2. to be a stickler about, to be finicky about (some triviality)

Godan verb with 'u' ending intransitive verb

3. to take part (in some work), to hang about, to bother (someone)

intransitive verb Godan verb with 'u' ending