ソク 
かわ がわ そば 
(名) side
⇔               
がわ (n,suf) (1) side (of something, or taking someone's side), part, (2) (watch) case
そば (n) (1) near, close, beside, vicinity, proximity, besides, while
そっきん (n) close associate, close aide, brains-truster
そくめん (n) side, flank, sidelight, lateral

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字