雁爪[ganzume] Japanese rake
糸爪[hechima] sponge gourd
爪で拾って箕で零す[tsumedehirottemidekobosu] penny wise and pound foolish
爪痕[tsumeato] fingernail mark
爪先[tsumasaki] tiptoe

爪先で歩く[tsumasakidearuku] to tiptoe
爪弾き[tsumahajiki] black sheep (of a family)
爪楊枝[tsumayouji] toothpick
爪立ち[tsumadachi] standing on tiptoes

匈牙利[hangarii] Hungary
勃牙利[burugaria] Bulgaria
葡萄牙[porutogaru] Portugal
牙城[gajou] stronghold (esp. of an enemy or opponent)
歯牙[shiga] teeth (and tusks)

歯牙矯正術[shigakyouseijutsu] orthodontia
歯牙疾患[shigashikkan] dental disease
歯牙状[shigajou] dentation
象牙[zouge] ivory