“暹”字的粤语注音(粤拼)cim3,读“堑”字音。(是粤语读音,用普通话的谐音来读是不准确的)见在线发声字典(繁体)http://humanum.arts.cuhk.edu.hk/Lexis/lexi-can/search.php?q=%BE%E6