郵便局
ゆうびんきょく
yuubinkyoku
= post office
郵便局 (yuubinkyoku) means post office — and in Japan, the post office is far more than a place to send mail. Japan Post offices offer postal services, banking (郵便貯金, yuubin chokin), insurance (かんぽ生命, Kampo), and domestic express delivery. In rural areas especially, the local 郵便局 is a genuine community institution and sometimes the closest financial service available.
Yuubinkyoku (郵便局) means post office. Services available: 手紙/はがきを出す (tegami/hagaki wo dasu — to send a letter/postcard), 小包を送る (kozutsumi wo okuru — to send a parcel), 速達 (sokutatsu — express mail), ゆうパック (yuu-pakku — Japan Post parcel service), 切手を買う (kitte wo kau — to buy stamps), 為替 (kawase — money order). Banking: 郵便貯金 (yuubin chokin — postal savings) / ゆうちょ銀行 (Yuucho Ginkou — Japan Post Bank).
Japan Post (日本郵便) operates the national postal network and provides very reliable domestic service. For sending packages within Japan, ゆうパック (Yuu-Pakku) is Japan Post’s door-to-door parcel service, competitive with private services like Yamato’s 宅急便 (takkyuubin — Kuroneko Yamato). At New Year (お正月, o-shoogatsu), Japanese people send 年賀状 (nengajou — New Year’s cards) by the millions — post offices handle this massive surge specially, with guaranteed delivery on January 1 for cards posted by specific deadlines in December.
郵便局 combines 郵 (yuu — postal, mail) + 便 (bin/ben — convenience, mail) + 局 (kyoku — bureau, office, station). 郵便 (yuubin) = postal mail. 局 (kyoku) appears in many institutional buildings: 銀行 is bank but 放送局 (housoukyoku — broadcasting station), 警察署 (keisatsusho — police station), 税務署 (zeimusho — tax office). The combination 局 specifically means a government or official office.
Everyday use
今日、郵便局に寄って荷物を出してきた。ゆうパックで2日で届くと言われた。
Kyou, yuubinkyoku ni yotte nimotsu wo dashite kita. Yuu-pakku de futsuka de todoku to iwareta.
I stopped by the post office today to send a package. They said it would arrive in two days by Yuu-Pakku.
Casual / Social Media
郵便局の窓口で年賀状100枚買ったら後ろに並んでた人に申し訳なさすぎた
Yuubinkyoku no madoguchi de nengajou hyaku-mai katta ra ushiro ni narande ta hito ni moushiwakenasa sugita
After buying 100 New Year’s cards at the post office window I felt terrible for the people lined up behind me
Formal / Cultural context
郵便局（日本郵便）は2007年の郵政民営化以降、持株会社「日本郵政」の傘下において郵便・物流・銀行（ゆうちょ銀行）・保険（かんぽ生命）の四事業体制で運営されている。郵便局ネットワークは全国約2万4千局を擁し、特に中山間地域・離島において最後の金融インフラとして機能しており、民営化後も政府が株式過半数を保有するユニバーサルサービス義務が課される特殊な事業体として位置づけられている。
Yuubinkyoku (Nihon Yuubin) wa 2007-nen no yuusei minei-ka ikou, mochikabu-gaisha ‘Nihon Yuusei’ no kansa ni oite yuubin butsuryuu ginkou (Yuucho Ginkou) hoken (Kampo Seimei) no yon-jigyou taisei de unei sarete iru. Yuubinkyoku nettowa-ku wa zenkoku yaku 2-man 4-sen kyoku wo yoyuu shi, toku ni chuusankan chiiki ritou ni oite saigo no kin’yuu infura toshite kinou shite ori, minei-ka go mo seifu ga kabushiki kazensuu wo hoyu suru yunibaaasaru saabisu gimu ga kasareru tokushu na jigyoutai toshite ichizuke rarete iru.
The post office (Japan Post) has been operated under the holding company ‘Japan Post Holdings’ in a four-business structure of postal services, logistics, banking (Japan Post Bank), and insurance (Kampo Life Insurance) since the 2007 postal privatization. The post office network encompasses approximately 24,000 offices nationwide, functioning as the last financial infrastructure particularly in mountainous areas and remote islands, and is positioned as a special business entity subject to universal service obligations with the government retaining a majority stake even after privatization.
The Japanese New Year card (年賀状, nengajou) system is a massive national event handled primarily through the 郵便局. Each year, Japanese people send hundreds of millions of postcards to family, friends, teachers, and colleagues as New Year greetings — Japan Post handled approximately 1.3 billion nengajou in peak years (mid-2000s), though numbers have declined with digital communication. The cards feature the zodiac animal of the new year and are designed with New Year imagery. They’re delivered en masse on January 1st — a logistical achievement that requires months of advance sorting.
The 郵便局 privatization debate in 2005 was one of the defining political moments of the Koizumi era. Japan’s postal savings system (郵便貯金, yuubin chokin) held enormous household savings — making Japan Post the world’s largest financial institution by deposits at its peak. Prime Minister Junichiro Koizumi dissolved parliament and called a snap election on the single issue of postal privatization, framing it as a choice between reform and stagnation. The ruling party’s landslide victory in that election led to the 2007 privatization, though the government has retained significant ownership.
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