開封

Wikipedia has articles on:

• 開封 (Written Standard Chinese^?)
• 開封 (Cantonese)
• Kăi-hŭng (Eastern Min)
• Khai-hong-chhī (Southern Min)
• 开封市 (Wu)

開封

1. to unseal, to break open a seal

   • 親朋寄書至，欲讀慵開封。 [Literary Chinese, trad.]
     亲朋寄书至，欲读慵开封。 [Literary Chinese, simp.]

     From: 811, Bai Juyi（白居易）,《詠慵》, translated into English as Lazy Man's Song by Arthur Waley, 1919.

     Qīnpéng jìshū zhì, yù dú yōng kāifēng.

     My friends and relatives write me long letters;
     I should like to read them, but they're such a bother to open.

• 啟封／启封 (qǐfēng)

The city was named in the late 8^th century BCE by the Duke Zhuang of Zheng originally as 啓封 / 启封 (qǐfēng), literally opening up a new domain. Later in 156 BCE, for the new emperor's name happened to be 啓／启, the character was displaced by its closest synonym 開／开, hence the current name.

開封

1. (～市) Kaifeng (a city in Henan, China)

• (archaic, historical) 汴梁 (Biànliáng)

• "Kaifeng—Ancient Capital" from the China Internet Information Center, State Council Information Office of the PRC

開(かい)封(ふう) • (kaifū) 

1. breaking-open of a seal

   未(み)開(かい)封(ふう)のまま賞(しょう)味(み)期(き)限(げん)を過(す)ぎてしまった牛(ぎゅう)乳(にゅう)

   mikaifū no mama shōmi kigen o sugiteshimatta gyūnyū

   milk that has passed its expiration date without ever being opened

2. unsealed mail

開(かい)封(ふう)する • (kaifū suru) suru (stem 開(かい)封(ふう)し (kaifū shi), past 開(かい)封(ふう)した (kaifū shita))

1. to break open a seal

開(かい)封(ほう) • (Kaihō) 

1. Kaifeng (a city in Henan, China)

開封 • (gaebong) (hangeul 개봉)

1. hanja form^? of 개봉