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

以東[itou] ... and eastward
関東[kantou] Kantou (eastern half of Japan, including Tokyo)
関東弁[kantouben] Kantou dialect
極東[kyokutou] Far East
近東[kintou] Near East

古今東西[kokontouzai] all times and places
広東[kanton] Guangdong (China)
広東語[kantongo] Cantonese
至東京[itarutoukyou] leading to Tokyo
真東[mahigashi] due east