List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• krill, euphasiid (any species in the family Euphausiacea)

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

• pert, tomboyish, impudent, lively, boisterous

usually written using kana alone  noun  noun (generic) 

• leavings, leftovers

usually written using kana alone  noun  noun (generic) 

• luxury, extravagance
• treat (i.e. at someone's expense)

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

• leader, trace, cast, snell

usually written using kana alone  noun  noun (generic) 

• Amur cork tree (Phellodendron amurense)

usually written using kana alone  noun  noun (generic)  food, cooking  Kantou-ben 

• Matsubara's red rockfish (Sebastes matsubarae)
• red rockfish, red scorpionfish

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

• drone beetle (Pseudotorynorrhina japonica)
• scarab beetle

usually written using kana alone  noun  noun (generic) 

• dusty miller (Jacobaea maritima)

usually written using kana alone  expression  adverb 

• using every trick in the book, using every trick one knows, by one rouse or another, with careful coaxing, carefully (e.g. nursing a damaged vehicle)