井戸側[idogawa] well curb
椽側[engawa] veranda
下側[shitagawa] underside
舷側[gensoku] ship's side
受信側[jushingawa] receiver

上っ側[uwakkawa] upper side
西側[nishigawa] west side
側む[sobamu] to lean to one side
側める[sobameru] to shove to one side

鯔背[inase] gallant
違背[ihai] violation
棄背[kihai] giving up and turning back
向背[kouhai] one's attitude
上背[uwazei] stature

側背[sokuhai] flank
団栗の背比べ[dongurinoseikurabe] having no outstanding characteristics
中肉中背[chuunikuchuuzei] medium build
中背[chuuzei] average height
二律背反[niritsuhaihan] antinomy