A general use dictionary like ﾂ広ﾅｽﾂｫ窶ｰ窶 or 窶佚･ﾅｽﾂｫ窶氾 is organized in 窶堋?窶堋｢窶堋､窶堋ｦ窶堋ｨ order, while a ﾅ?ﾂｿﾋ彗ﾅｽﾂｫ窶弋 (kanji dictionary) is organized by the radicals.
most japanese dictionaries to any language are organized by letters hiragana or katakana
but kanji : its dictionary is different ... it depends on strokes ... 4 example
私 this kanji wrote in 7 strokes ,so you'll check it in 7 strokes group ..and so on ...