popular  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  adverb  mathematics 

• inner thoughts, real intention, inmost heart, one's mind
• at heart, deep down, on the inside
• inner center (centre)

popular  noun  noun (generic)  adverb 

• today, this day

popular  noun  noun (generic)  noun or participle taking the aux. verb する  adverb 

• origin, source, history, derivation
• originally, from the start, by nature

popular  obsolete kanji  JLPT N5  usually written using kana alone  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  adverb  な adjective  noun (suffix) 

• remainder, remnant, rest, balance, surplus, remains (of a meal), leftovers
• (not) very, (not) much
• too much, excessively, overly
• extreme, great, severe, tremendous, terrible
• more than, over

popular  JLPT N3  adverb  noun  noun (generic) 

• just a minute, small quantity

popular  JLPT N3  usually written using kana alone  adverb 

• why?, what for?
• how?, by what means?

popular  noun  noun (generic)  adverb 

• air route, air lane
• by air, by plane

popular  JLPT N2  adverb  adverb taking the と particle  noun  noun (generic)  noun or participle taking the aux. verb する 

• moving from place to place, being passed around repeatedly
• rolling about

popular  JLPT N2  noun  noun (generic)  adverb 

• each (person), everyone, individual, respective

popular  JLPT N5  usually written using kana alone  adverb 

• how many
• how old