3 strokes · 71 jōyō kanji
The radical is highlighted in color in each kanji.
口 is the “mouth” radical — Kangxi radical #30, 3 strokes. It appears in 71 of the 2,136 jōyō kanji, listed below from the simplest to the most complex with the radical highlighted in color in each one.
Components found in these kanji — tap one to keep only the kanji that contain it (highlighted in blue).