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Jyutping bou2 on1 jyun4
Pinyin bǎo ān yuán

Definitions (Wiktionary)
  1. noun
    security guard; security man
    (syn.) 保鏢, 衛兵, 卫兵, 保镖, 警衛, 警衛員, 警卫员, 护卫, 卫士, 保安, 警卫, 護衛, 若呀, 衛士

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Jyutping bou2 on1 jyun4
Pinyin bāo3an yuán

Definitions (CC-CANTO)
  1. a securi ty guard [written and colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    保安员喺银行外面见到两个形迹可疑嘅人,于是报警。
    保安員喺銀行外面見到兩個形跡可疑嘅人,於是報警。
    bou2 on1 jyun4 hai2 ngan4 hng4 ngoi6 min6 gin3 dou2 loeng5 go3 jing4 zik1 ho2 ji4 ge3 jan4, jyu1 si6 bou3 ging3.
    • The security guard saw two suspicious people outside the bank, so he called the police.