noun, Cantonese
a respectful honorific to a man senior than oneself
sir [---]
Jyutping
soe4
Pinyin
sir
Definitions (粵典–words.hk)
詞綴、外來語
先生、男士嘅英文,加喺姓氏後面,用作尊稱教師、上司等人物(通常④聲[陽平]、⑥聲[陽去]嘅姓氏,會讀做②聲[陰上]) sir; an honorific suffix for teachers or bosses added after the surname (note that after adding this suffix, usually a surname that is originally Tone-4 or Tone-6 becomes Tone-2)
阿sir
阿sir
aa3 soe4 sir (male teacher or male police officer)