印鑑[inkan] stamp
印鑑証明[inkanshoumei] certification of official registration of a seal
鑑みる[kangamiru] to heed
鑑札[kansatsu] licence
鑑識[kanshiki] judgement

鑑賞[kanshou] appreciation (e.g. of art)
鑑定[kantei] judgement
鑑別[kanbetsu] discrimination
龜鑑[kikan] pattern
図鑑[zukan] illustrated reference book

龜の子[kamenoko] young turtle (tortoise)
龜の手[kamenote] barnacle
龜鑑[kikan] pattern
龜甲[kikou] tortoise shell

龜裂[kiretsu] crack
龜卜[kameura] tortoise-shell divination
龜の甲[kamenokou] tortoise shell
龜虫[kamemushi] shield bug