List: noun (generic)

popular  noun  noun (generic) 

• chancy trade or business with uncertain profitability
• night entertainment business (e.g. hostess bar), nightlife business

popular  noun  noun (generic) 

• field overseer, site foreman

popular  noun  noun (generic) 

• perishable food, perishables

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

• nocturnality, nocturnal habits

popular  JLPT N1  noun  noun (generic) 

• otolaryngology, ear, nose, and throat department

popular  noun  noun (generic)  colloquial  go (game) 

• vital part (of the body), tender spot, weak point, vitals
• key point, essential point, crux (of a problem), heart (of a matter)
• male crotch (as a target in fighting)
• vital point, critical place to make a move

popular  JLPT N2  usually written using kana alone  noun  noun (generic) 

• saw

popular  JLPT N2  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  adverb 

• some, any, (a) little, of some kind, of some sort
• please
• anyway, anyhow, at any rate, after all

popular  JLPT N3  noun  noun (generic) 

• cough, coughing, tussis

popular  noun  noun (generic) 

• empty conveyance, empty taxi, free taxi
• having spaces available (of a parking lot)