List: word usually written using kana alone

popular  obsolete reading  search-only kana form  rarely used kanji form  JLPT N3  noun  noun (generic)  usually written using kana alone  printing 

• throat
• singing voice
• gutter (inner margins of a book)

popular  gikun or jukujikun  rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• (spoken) line (in a play, film, comic, etc.), one's lines
• comment, remark, phrase, words
• stock phrase, set phrase, cliché, platitude

popular  usually written using kana alone  noun  noun (generic) 

• stuffed toy, stuffed animal, plush toy, soft toy, cuddly toy

popular  usually written using kana alone  noun  noun (generic) 

• trout, sea trout

popular  gikun or jukujikun  search-only kana form  JLPT N2  usually written using kana alone  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb 

• burn, scald

popular  irregular kanji usage  usually written using kana alone  noun  noun (generic) 

• frog
• kajika frog (Buergeria buergeri)

popular  rarely used kanji form  JLPT N2  usually written using kana alone  adverb  noun taking the genitive case particle の  adjective (generic)  な adjective  noun  noun (generic) 

• originally, from the start, from the beginning, from the outset, by nature
• none the worse (for), (coming out) even, in the same position (as before)

popular  rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• tanuki (Nyctereutes procyonoides), raccoon dog
• sly dog, sly old fox, sly fox, cunning devil, sly person

popular  obsolete reading  noun  noun (generic)  colloquial  abbreviation  usually written using kana alone 

• kappa, mythical water-dwelling creature
• excellent swimmer
• cucumber
• cucumber sushi wrapped in nori

popular  obsolete reading  usually written using kana alone  noun  noun (generic) 

• birch (esp. Japanese white birch)