2 Old HSK word(s): ☊牙齿 ** C ☊齿轮 ** D
不足挂齿* * 齿* * 臼齿* * 口齿* * 难以启齿* * 啮齿* * 乳齿* * 咬牙切齿* * 智齿* * 蛀齿* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

蛀 insects that eat books, clothes
齿 teeth / gears, cogs / age / simplified form of the KangXi radical number 211

Hsk Characters: 齿 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
齿 9F7F + 齒 + + teeth / gears, cogs / age / simplified form of the KangXi radical number 211 齿 齿 Teeth 齿 (ZÄHNE) chi3 +

Korean:

齒 + 齿 이 치 (이: teeth, the teeth)
1 NHSK word(s): 咬牙切齿* 6 yao3 ya2 qie4 chi3gnashing one's teeth (idiom)/ displaying extreme anger/ fuming with rage between gritted teeth
KOREAN6000 word(s):
1 KOREAN 2500 New HSK words):
牙齿 + yáchǐ 이. 치아. i. chia.
0 KOREAN Sentence(s):