List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• black Japanese striped snake (Elaphe quadrivirgata), Japanese black ratsnake

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

• common vetch (Vicia sativa), tare

rarely used kanji form  usually written using kana alone  い adjective  adjective (generic) 

• presumptuous, impertinent, impudent, cheeky
• ridiculous, laughable, absurd

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

• careless, thoughtless, stupid, heedless, unobservant, inadvertent, incautious

usually written using kana alone  noun  noun (generic) 

• tree frog (esp. the Japanese tree frog, Hyla japonica)

rarely used kanji form  usually written using kana alone  godan verb  godan verb (archaic)  verb (generic)  transitive verb 

• to peep (through), to peek, to examine (esp. covertly)
• to await (one's chance)
• to guess, to infer, to gather, to surmise

gairaigo  Chinese origin  usually written using kana alone  food, cooking  noun  noun (generic) 

• wonton (Chinese dumpling), won ton, wantan, wanton, wuntun

usually written using kana alone  noun  noun (generic) 

• wild sesame (Perilla frutescens var. frutescens), oilseed perilla, egoma

usually written using kana alone  noun  noun (generic) 

• enoki mushroom (Flammulina velutipes), winter mushroom, velvet shank, enokitake, enokidake

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

• round, circular, spherical
• mellow (flavour, voice, etc.), mild, smooth