List: word usually written using kana alone

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

• blockhead, dunce, dimwit, dolt, slowcoach, slowpoke

search-only kana form  search-only kanji form  usually written using kana alone  い adjective  adjective (generic) 

• slow, clumsy, slow-witted, stupid

popular  rarely used kanji form  usually written using kana alone  particle  conjunction  prefix 

• while, during, as
• while, although, though, despite, in spite of, notwithstanding
• all, both
• as (e.g. "as always", "as long ago"), in (e.g. "in tears")
• while doing something else (at the same time)

rarely used kanji form  search-only kanji form  noun  noun (generic)  usually written using kana alone 

• naginata, polearm with a curved single-edged blade (similar to a glaive)
• naginata, martial art of wielding the naginata

gairaigo  Ainu origin  rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• reindeer (Rangifer tarandus)

usually written using kana alone  noun  noun (generic) 

• peanut (Arachis hypogaea)

usually written using kana alone  noun  noun (generic) 

• camphor tree (Cinnamomum camphora), camphorwood, camphor laurel

usually written using kana alone  adverb 

• both

obsolete kanji  usually written using kana alone  noun  noun (generic) 

• house mouse (Mus musculus)

usually written using kana alone  noun  noun (generic) 

• radish (Raphanus sativus var. sativus)