Beian

From the Hanyu Pinyin romanization of Mandarin 北安 (Běi'ān), without syllable-dividing mark (隔音符號／隔音符号 (géyīn fúhào)).

Beian

1. Alternative form of Bei'an
   • 2013 December 18, Keira Lu Huang, “Anti-corruption expert Zhang Yi takes control at China's state asset watchdog”, in South China Morning Post‎^[1], →ISSN, →OCLC, archived from the original on 18 December 2013, China Insider‎^[2]:

     Born in Beian, Heilongjiang Province in northeast China, Zhang graduated from Northeast Forestry College with a senior degree.

Beian can be considered a misspelling of Bei'an. In theory, a syllable-dividing mark (隔音符號／隔音符号 (géyīn fúhào)) should be added before a non-initial syllable beginning with a, o, or e. Hence, Beian is not allowed since a word made up of bei and an would be spelled as Bei'an (cf. Bei'an). In practice, syllable-dividing marks are often added or omitted at will.