List: Youtube

Wordpopular  rarely used kanji form  JLPT N3  noun  noun (generic) 

• tooth decay, cavity, decayed tooth, dental caries

Wordpopular  onomatopoeic or mimetic word  adverb taking the と particle  adverb 

• prickling, stinging, biting
• tale-telling, tattling

Wordnoun taking the genitive case particle の  adjective (generic) 

• within expectations, as expected, within the scope of hypothesis or assumption

Wordpopular  obsolete kanji  usually written using kana alone  noun  noun (generic) 

• firefly (Luciola cruciata), lightning bug, glowworm

Wordwork of art, literature, music, etc. name  noun  noun (generic)  ENAMDICT/JMnedict words 

• Grave of Fireflies (film)

Wordpopular  search-only kana form  chemistry  noun  noun (generic)  abbreviation  usually written using kana alone 

• carbonic acid
• carbonated water, carbonated drink
• baking soda, sodium carbonate

Wordnoun  noun (generic) 

• carbonated drink, fizzy drink, soda

Wordpopular  JLPT N2  noun  noun (generic) 

• locomotive, engine

Wordslang  noun  noun (generic) 

• muscle-brain, meathead, hot-blooded idiot, person who charges in before thinking

Wordpopular  JLPT N2  noun  noun (generic)  noun or participle taking the aux. verb する 

• lending, loaning