List: word usually written using kana alone

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

• white broth (esp. for ramen), broth without soy sauce (made by simmering bones)

popular  usually written using kana alone  noun  noun (generic) 

• ditch, drain, gutter, trench
• gap (between cutting guides)

usually written using kana alone  い adjective  adjective (generic) 

• half-hearted, overly optimistic, naive, inexperienced, immature, green

usually written using kana alone  noun  noun (generic) 

• serial

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

• Quercus gilva (species of oak)

usually written using kana alone  noun  noun (generic) 

• Caspian gull (Larus cachinnans)

usually written using kana alone  colloquial  noun  noun (generic) 

• quipping back at something said by oneself, poking fun at one's own comment

usually written using kana alone  colloquial  noun  noun (generic) 

• home cooking, home meal

rarely used kanji form  usually written using kana alone  adverb 

• (since) long ago, for a long time

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

• extreme, extraordinary, rare, brilliant