偏芯[henshin] eccentricity (in mechanics, electronics, etc.)
燈芯[toushin] (lamp) wick
帯芯[obishin] thick obi sash
摘芯[tekishin] thinning (buds and branches)
芯地[shinji] padding

替え芯[kaeshin] spare lead
鉛筆の芯[enpitsunoshin] lead of a pencil
硬の芯[kounoshin] hard pencil lead
林檎の芯[ringonoshin] core of an apple

緋縅し鎧[hiodoshiyoroi] scarlet-threaded suit of armor (armour)
鎧一具[yoroiichigu] suit of armor
鎧戸[yoroido] slatted shutter
鎧球[gaikyuu] American football
鎧蜥蜴[yoroitokage] girdle-tailed lizard

鎧竜[gairyuu] ankylosaur (any dinosaur of infraorder Ankylosauria)
鎧袖一触[gaishuuisshoku] (beating someone) hands down
鎧鼠[yoroinezumi] armadillo
鎧草[yoroigusa] Angelica dahurica (species of angelica)