気孔[kikou] pore
空気孔[kuukikou] air pocket
孔子[koushi] Confucius
孔雀[kujaku] peafowl (inc. the male peacock, female peahen, and young peachick)
孔雀石[kujakuseki] malachite

孔雀妙王[kujakumyouou] Mayuri Vidya-raja
細孔[saikou] pore
多孔[takou] porous
通気孔[tsuukikou] vent

機関[karakuri] mechanism
アナログ計算機[anarogukeisanki] analog computer
エンジン発動機[enjinhatsudouki] engine
サーボ機構[saabokikou] servomechanism
シフト演算機構[shifutoenzankikou] shift arithmetic unit

ジェット機[jettoki] jet aeroplane
弾機[hatsujou] spring (e.g. coil, leaf)
ヒグス機構[higusukikou] Higgs mechanism (physics)
プロペラ機[puroperaki] propeller-driven aircraft
圧延機[atsuenki] rolling machine

穿ちすぎた[ugachisugita] farfetched
穿山甲[senzankou] pangolin
穿刺[senshi] puncture
穿通[sentsuu] penetration
下穿[shitabaki] undershorts

穿く[haku] to put on (or wear) lower-body clothing (i.e. pants, skirt, etc.)
穿鑿[sensaku] scrutiny
穿孔[senkou] perforation
穿孔機[senkouki] drill
穿つ[ugatsu] to drill