肩を竦める[katawosukumeru] to shrug one's shoulders
肩を持つ[katawomotsu] to side with
肩寄せる[katayoseru] to be (standing) together, an arm across the other's shoulder
肩こり[katakori] stiff shoulders
肩巾[hire] shawl (on shoulder of woman's dress)

肩車[kataguruma] riding piggyback
肩章[kenshou] shoulder strap
肩身[katami] shoulders
肩身が狭い[katamigasemai] feeling ashamed

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