Godan verb with 'ku' endingintransitive verb word usually written using kana alone to flash (e.g. lightning);to flicker;to glitter;to sparkle;to gleam

Godan verb with 'ku' endingintransitive verb word usually written using kana alone to flutter (e.g. flag);to wave;to undulate

Godan verb with 'ku' endingintransitive verb word usually written using kana alone to flash into one's mind (e.g. an idea);to come to one suddenly