List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• chub mackerel (Scomber japonicus)

usually written using kana alone  noun  noun (generic) 

• blue mackerel (Scomber australasicus)

usually written using kana alone  rare term  noun  noun (generic) 

• blue mackerel (Scomber australasicus)

usually written using kana alone  noun  noun (generic) 

• great barracuda (Sphyraena barracuda)

usually written using kana alone  noun  noun (generic) 

• red barracuda (Sphyraena pinguis), brown barracuda

usually written using kana alone  noun  noun (generic) 

• rainbow smelt (Osmerus mordax dentex)

gairaigo  Chinese origin  search-only kana form  usually written using kana alone  mahjong  noun  noun (generic) 

• rīchi, riichi, declaring that one is one tile away from winning while one's hand is completely concealed
• being one step away from victory (or success, etc.)

usually written using kana alone  noun  noun (generic) 

• eastern pale clouded yellow (butterfly, Colias erate)

usually written using kana alone  rare term  noun  noun (generic) 

• eastern pale clouded yellow (butterfly, Colias erate)

usually written using kana alone  noun  noun (generic) 

• ubame oak (Quercus phillyraeoides)