popular  JLPT N1  adverb  noun  noun (generic) 

• day and night, around the clock, always, constantly

popular  irregular okurigana  JLPT N4  noun  noun (generic)  adverb 

• once, one time, on one occasion
• temporarily, for a moment
• one degree, one tone, one musical interval

popular  noun  noun (generic)  adverb 

• this year, this fiscal year, this school year

popular  JLPT N3  adverb  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic) 

• other (esp. people and abstract matters)

popular  JLPT N1  たる adjective  adjective (generic)  adverb taking the と particle  adverb 

• still, as yet, as it has been

popular  JLPT N1  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  adverb 

• all, everything, entirety, the whole
• absolutely (not), (not) at all, (none) whatsoever, without exception

popular  JLPT N3  adverb  noun  noun (generic) 

• (what) the heck, (why) in the world, (who) on earth
• one object, one body, unity
• one form, one style
• one Buddhist image (or carving, etc.)
• generally, in general

popular  rarely used kanji form  JLPT N3  usually written using kana alone  adverb 

• already
• previously, before
• undeniably, unmistakably, in the first place

popular  JLPT N3  noun  noun (generic)  adverb  grammar 

• time, hour, moment
• occasion, case
• chance, opportunity, season
• the times, the age, the day
• tense

popular  JLPT N3  noun  noun (generic)  adverb 

• moment, second, instant