List: Study

KanjiKyōiku kanji  Jōyō kanji  3rd grade kanji  6 strokes  JLPT N3 kanji 

• guard, protect, defend, obey

KanjiJōyō kanji  8th grade kanji  16 strokes  JLPT N2 kanji 

• grind, polish, scour, improve, brush (teeth)

Wordpopular  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• use, application, employment, utilization, utilisation

Wordexpression  noun taking the genitive case particle の  adjective (generic) 

• in use, occupied (e.g. toilet), engaged

Wordpopular  rarely used kanji form  JLPT N1  adverb 

• previously, before, earlier, formerly, recently
• first, before (something or someone else), ahead (of), earlier
• beforehand, in advance, ahead of time

Wordpopular  rarely used kanji form  expression  adverb 

• else, in addition, besides

Wordpopular  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  intransitive verb 

• concentration (on a task), focusing one's attention
• concentration (of population, buildings, power, etc.), centralization, convergence, focus (of a debate, questions, etc.)
• within a collection of works

Wordpopular  JLPT N4  noun  noun (generic) 

• rule, regulation

Wordpopular  godan verb  godan verb (archaic)  verb (generic)  transitive verb 

• to reread, to read again

Wordpopular  JLPT N3  noun  noun (generic) 

• mistake, error, blunder
• accident, mishap, trouble
• improper conduct (e.g. between man and woman), indiscretion