なおこFreq.FrequencyTop 100,000Meanings1nounNaoko mushroomA long, thin, brown mushroom. The name is a proper noun-like term for this specific variety; not a general word for mushroom.なおこは、細ほそ長ながい茶ちゃ色いろのキノコです。Naoko is a long, thin, brown mushroom.