From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] 餡 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [ichi1] あん /ˈäɴ/
1. (noun (common) (futsuumeishi))
餡こ・1 [food term] red bean paste, red bean jam, anko
2. 葛餡 [food term] kudzu sauce
3. [food term] filling (of a dumpling, bun, etc., e.g. ground meat, vegetables, bean paste)
4. 餡子・2filling (generally), a substance wrapped in something else (e.g. cushion stuffing)