noun:

• red line
• red-light district - abbreviation ➜ 赤線地帯・赤線区域

noun:

• blue line
• area around a red-light district where illegal prostitution occurred (marked on police maps by a blue line) (1940s-1956) ➜ 青線地帯

noun:

• Japanese book size (approx. 12.5cm by 17.5cm) ➜ 半紙【はんし】
• late Edo-period novelette depicting life in the red-light district ➜ 洒落本

noun / ~の noun:

• frivolity; unpredictability; erraticism
• first-time guest in a red-light district

noun:

• dangerous area; perilous road
• red-light district; house of ill repute; brothel ➜ 岡場所【おかばしょ】

noun:

• excursion spot; getaway - archaism
• red-light district; brothel - archaism

noun:

• judge; magistrate ［はんがん］
• 3rd grade official (ritsuryo system); assistant district officer; inspector - archaism ➜ 四等官・尉【じょう】

noun:

• one yen

suffix / adverb:

• throughout (an area); whole district

noun / ~する noun:

• sinking; foundering; going down; submersion
• getting dead drunk - colloquialism
• having too much fun (esp. in a red-light district, etc.) and missing work or neglecting one's duties - colloquialism
• staying in one place for a long time - backpacker slang - slang

noun:

• night mooring (for a boat) ➜ 夜泊
• sleeping away for the night (esp. in a red light district)

noun:

• mid-sized store
• middle-class brothel (in a red-light district)

noun / ~する noun:

• call; summons; paging; curtain call ➜ 呼び出す【よびだす】

noun:

• usher who calls the names of wrestlers, sweeps the ring, etc. - Sumo term
• telephone number at which a person without a telephone can be reached - abbreviation ➜ 呼び出し電話
• box-shaped area containing clean water for rinsing oneself (in an Edo-period bathhouse) - archaism ➜ 陸湯
• high-ranking prostitute in the Yoshiwara district (Edo period) - archaism
• unlicensed prostitute in the Fukagawa red-light district (Edo period) - archaism

noun:

• small chrysanthemum
• small low grade piece of japanese paper used as a kettle rest or as a tissue - obscure term
• paper handed as a means of congratulations in a red light district - obscure term

noun:

• unloading a barge
• small pieces of fried tofu
• palanquin that carried guests to and from the red light district

noun:

• moon palace of the Hindu god Chandra
• imperial palace
• Yoshiwara red light district - archaism

noun:

• paper flowers ［紙花］
• paper flowers for a funeral ［紙花］ - archaism
• paper handed out as a means of congratulations in a red light district (as a promise of a future money donation) ➜ 小菊【こぎく】

noun:

• from the area (e.g. person or goods)
• local trader; local merchant
• street tough; hoodlum controlling a territory (e.g. red light district, amusement area)

noun:

• aphid; plant louse
• cockroach - Kansai dialect ➜ ゴキブリ
• Japanese house bat (Pipistrellus abramus) - obscure term ➜ 油蝙蝠
• hanger-on; parasite
• visitor to a red-light district who's only there to look - archaism