シ
よわい、は、よわ.い、よわい.する
歯, 止, 卜, 米, 凵
齒
tooth, cog
歯(は): tooth
歯科(しか): dentistry
虫歯(むしば): cavity; tooth decay; decayed tooth; caries
歯車(はぐるま): gear; cog-wheel
歯磨き(はみがき): (1) dental brushing; brushing one's teeth (2) dentifrice; toothpaste; tooth powder
歯医者(はいしゃ): dentist