List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• chalcid (fly, wasp), chalcis (fly)

usually written using kana alone  noun  noun (generic) 

• collared pratincole (Glareola pratincola), common pratincole

usually written using kana alone  noun  noun (generic) 

• small pratincole (Glareola lactea), little pratincole, small Indian pratincole

usually written using kana alone  expression  Kansai-ben 

• useless, no good, hopeless

usually written using kana alone  noun  noun (generic)  な adjective  adjective (generic) 

• sex fiend, lecher, pervert

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

• twist, wrench, distortion, kink, warp
• torsion

usually written using kana alone  noun  noun (generic) 

• sea firefly (Vargula hilgendorfii), seed shrimp

archaic  usually written using kana alone  pre-noun adjectival  adjective (generic) 

• faint, fleeting

usually written using kana alone  noun taking the genitive case particle の  adjective (generic)  な adjective  noun  noun (generic) 

• plump, buxom, chubby

usually written using kana alone  noun  noun (generic) 

• common kochia (Bassia scoparia), burning bush, summer cypress