List: noun (generic)

popular  noun  noun (generic) 

• round shape, circle, circular form

popular  gikun or jukujikun  JLPT N5  usually written using kana alone  noun  noun (generic)  derogatory 

• glasses, eyeglasses, spectacles
• judgment, judgement, discrimination, discernment, insight
• four-eyes

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

• highest (e.g. floor), top
• best, finest, supreme, highest (quality)

popular  obsolete reading  JLPT N3  noun  noun (generic) 

• merchant, trader, tradesman, dealer, shopkeeper

popular  gikun or jukujikun  rarely used kanji form  JLPT N3  noun  noun (generic) 

• (East Asian) rainy season (in Japan, usu. from early June to mid-July)
• rain during the rainy season

popular  noun  noun (generic)  adverb 

• next morning

popular  noun  noun (generic) 

• summer season, summer, summertime

popular  ateji  JLPT N4  honorific language  noun  noun (generic) 

• knowing, being aware (of)
• (an) acquaintance

popular  JLPT N2  noun  noun (generic)  sumo 

• railway crossing, railroad crossing, train crossing, level crossing
• starting line, scratch
• determination
• stepping over the edge of the ring

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

• space, room, gap, emptiness
• vacancy, opening, empty seat
• free time, time to spare
• disuse, unused thing