List: noun (generic)

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

popular  noun  noun (generic) 

• originator, promoter

popular  JLPT N1  noun  noun (generic) 

• territorial waters

popular  noun  noun (generic) 

• sickroom, hospital room, ward

popular  JLPT N1  noun  noun (generic)  な adjective  adjective (generic) 

• economic slump, hard times, depression, recession
• poor (business), dull, slack, inactive
• gloomy, cheerless, dismal