外枠[sotowaku] border
帰国子女枠[kikokushijowaku] special consideration for students who have lived abroad
黒枠[kurowaku] mourning borders
社会人枠[shakaijinwaku] special consideration for non-traditional (older) students
窓枠[madowaku] window frame

枠内[wakunai] within the limits (framework, boundaries, price, etc.)
抜枠[bassui] extract
枠組[wakugumi] frame
糸枠[itowaku] reel