意馬心猿[ibashinen] (being unable to control) one's worldly desires and passions
猿轡をかます[sarugutsuwawokamasu] to gag someone
猿も木から落ちる[sarumokikaraochiru] even monkeys fall from trees
猿回し[sarumawashi] showman who trains performing monkeys
猿ぐつわ[sarugutsuwa] (mouth) gag

猿股[sarumata] undershorts
猿芝居[sarushibai] monkey show
猿まね[sarumane] indiscriminate imitation (lit: monkey imitator)
猿人[enjin] ape man

一眼[ichigan] one eye
一眼レフ[ichiganrefu] single-lens reflex camera
一隻眼[issekigan] sharp eye
遠眼[engan] farsightedness
遠眼鏡[toomegane] spectacles for far-sightedness

凹眼[ougan] cavernous eyes
凹眼鏡[ougankyou] concave glasses
開眼[kaigan] enlightenment
眼下[ganka] under one's eyes
眼科[ganka] ophthalmology

ハッブル望遠鏡[habburubouenkyou] Hubble telescope
胃鏡[ikyou] gastroscope
遠眼鏡[toomegane] spectacles for far-sightedness
凹眼鏡[ougankyou] concave glasses
凹面鏡[oumenkyou] concave mirror

鏡像[kyouzou] reflected image
鏡台[kyoudai] dresser
鏡板[kagamiita] panel
鏡面[kyoumen] mirror surface