Doubled (ぺらぺら) · #94 by frequency · Often written in katakana

こつこつ

コツコツ

steadily

Family

Doubled-ん
Light こつこつsteadily コツンwith a bonk
Heavy ごつんごつんthumping ゴツンthud

Senses

  1. steadily, unflaggingly, untiringly, laboriously, diligently
  2. knocking, tapping, clicking, drumming

Pera Pera post, 2026-10-14: Kotsukotsu: working slowly and steadily

See こつこつ on Jisho.