洞ReplayHide orderStrokes: KanjiVG, CC BY-SA 3.0cave, hole, zero (unambiguous spoken form when spelling out numbers), CL:個|个[ge4]PinyindòngStrokes9Frequency2515 of 2500Words starting with 洞Words ending in 洞Anywhere in a word
口ReplayHide orderStrokes: KanjiVG, CC BY-SA 3.0mouth, classifier for things with mouths (people, domestic animals, cannons, wells etc), classifier for bites or mouthfulsPinyinkǒuStrokes3Frequency4127 of 2500Words starting with 口Words ending in 口Anywhere in a word