From Japanese-English FreeDict Dictionary ver. 0.1:
拠り所 /(en)tʃˈaɪniːz(ja)lˈe̞tə ɽˈi (en)tʃˈaɪniːz(ja)lˈe̞tə/, 拠りどころ /ɽˌido̞kˈo̞ɽo̞/, より所 /jˈo̞ ɽˈi (en)tʃˈaɪniːz(ja)lˈe̞tə/, 拠 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, (irregular okurigana usage) 拠所 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, よりどころ /jˌo̞ɽido̞kˈo̞ɽo̞/ 1. (noun (common) (futsuumeishi))
Note: word usually written using kana alonegrounds, foundation, authority 2. Note: word usually written using kana alonesupport, prop, something upon which to rely