1. to catch fire, to be ignited, to ignite, to light (e.g. of a match)

Godan verb with 'ku' ending expressions (phrases, clauses, etc.)

2. to flare up (of an emotion, controversy, etc.), to blaze, to be ignited (of a dispute, commotion, etc.), to take off (of a boom, craze, etc.)

expressions (phrases, clauses, etc.) Godan verb with 'ku' ending idiomatic expression