List: Learned

Wordarchaic  noun  noun (generic) 

• definiteness, certainty

Wordexpression 

• not required

Wordexpression  い adjective  adjective (generic) 

• unnecessary, not needed, not necessary

Wordpopular  JLPT N4  な adjective  adjective (generic)  noun  noun (generic) 

• necessary, needed, essential, indispensable
• necessity, need, requirement

Wordpopular  JLPT N4  adverb 

• always, without exception, necessarily, certainly, without fail, positively, invariably

Wordgairaigo  Vietnamese origin  ateji  rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• Saigon, Ho Chi Minh City

Wordpopular  JLPT N2  usually written using kana alone  い adjective  adjective (generic) 

• grateful, thankful, welcome, appreciated, evoking gratitude

Wordpopular  search-only kanji form  JLPT N3  usually written using kana alone  interjection 

• thank you, thanks

Wordnoun  noun (generic) 

• winter, winter season
• winter moon

Wordpopular  yojijukugo  noun  noun (generic)  adverb 

• spring, summer, autumn (fall) and winter, the four seasons