Wikipedia has articles on:

• 西城 (Written Standard Chinese^?)
• 西城區 (Cantonese)
• 西城區 (北京) (Classical)
• Sai-siâⁿ-khu (Southern Min)
• 西城區 (Wu)

西城

1. (～區) Xicheng (a district of Beijing, China)
2. (～街道) Xicheng (a subdistrict of Zengdu district, Suizhou, Hubei, China)
3. (～街道) Xicheng (a subdistrict of Jingzhou district, Jingzhou, Hubei, China)
4. (～經濟技術開發區) Xicheng (an economic and technological development zone in Zhangwan district, Shiyan, Hubei, China)
5. (literary) Alternative name for 西雅圖／西雅图 (Xīyǎtú, “Seattle (a city in Washington, United States)”).

   《西城時報》／《西城时报》  ―  “Xīchéng shíbào”  ―  Seattle Chinese Times

   • 1989, 李辰雄, 西雅圖隨筆‎^[1]:

     由加州洛埠遷調華州西城 [MSC, trad.]
     由加州洛埠迁调华州西城 [MSC, simp.]

     yóu Jiāzhōu Luòbù qiāndiào Huázhōu Xīchéng [Pinyin]

     Moved from Los Angeles, California to Seattle, Washington

   • 1992, 廣角鏡‎^[2]:

     座落在華盛頓州西雅圖市的西城大學，創立已超過百年，為西北地區唯一培訓耶穌會教士的中心 [MSC, trad.]
     座落在华盛顿州西雅图市的西城大学，创立已超过百年，为西北地区唯一培训耶稣会教士的中心 [MSC, simp.]

     zuòluò zài Huáshèngdùn Zhōu Xīyǎtú Shì de Xīchéng Dàxué, chuànglì yǐ chāoguò bǎinián, wèi xīběi dìqū wéiyī péixùn Yēsūhuì jiàoshì de zhōngxīn [Pinyin]

     Seattle University, located in Seattle, Washington, has been established for over a hundred years. It is the only institution in the American Northwest to train Jesuit clergypeople.

6. An orthographic borrowing of the Japanese surname 西城, Saijō

• 東城／东城 (Dōngchéng)
• 南城 (Nánchéng)
• 北城 (Běichéng)

• → English: Xicheng

Japanese Wikipedia has an article on:

西城

Wikipedia ^ja

西(さい)城(じょう) • (Saijō) 

1. a surname

   西城(さいじょう)秀樹(ひでき)

   Saijō Hideki

   Hideki Saijo