(pos:介詞)
<explanation>
yue:基於某個目的、原因、出發點；針對某個對象
eng:for; for the sake of; for the purpose of; because of
<eg>
yue:為乜 (wai6 mat1)
eng:for what
<eg>
yue:為你好 (wai6 nei5 hou2)
eng:for the sake of your benefit
<eg>
yue:為人民服務 (wai6 jan4 man4 fuk6 mou6)
eng:for the sake of service to the people

(pos:介詞)
<explanation>
yue:#擔任；#擔當；交代對象嘅身份
eng:to act as; to be
<eg>
yue:不如選佢為我哋嘅班代表？ (bat1 jyu4 syun2 keoi5 wai4 ngo5 dei6 ge3 baan1 doi6 biu2?)
eng:Let's elect him as our class representative, shall we?
----
<explanation>
yue:#作為；變做；交代對象變成乜嘢
eng:to become; to be
<eg>
yue:化悲憤為力量 (faa3 bei1 fan5 wai4 lik6 loeng6)
eng:to make sadness become the motivation for moving forward
----
<explanation>
yue:表示被動
eng:used to express passive
<eg>
yue:#廣為 (gwong2 wai4)
eng:to be widely/generally ...
<eg>
yue:為天下人恥笑 (wai4 tin1 haa6 jan4 ci1 siu3)
eng:to be ridiculed by everyone
<eg>
yue:不為所動 (bat1 wai4 so2 dung6)
eng:unmoved
<eg>
yue:為人所熟悉 (wai4 jan4 so2 suk6 sik1)
eng:well-known (by people)

(pos:語素)
<explanation>
yue:#做；實行；行動
eng:to do; to practice; to act
<eg>
yue:#行為
<eg>
yue:#胡作非為
<eg>
yue:#所作所為
<eg>
yue:#為所欲為
<eg>
yue:敢作敢為 (gam2 zok3 gam2 wai4)
eng:to be decisive and bold in action
<eg>
yue:為善最樂。 (wai4 sin6 zeoi3 lok6.)
eng:Doing good is the happiest thing to do.

(pos:動詞)
<explanation>
yue:錢銀嘅運算、統計
eng:to tally, to calculate the cost
<eg>
yue:#維皮 (wai4 pei2)
<eg>
yue:#維本 (wai4 bun2)
<eg>
yue:#有數維 (jau5 sou3 wai4)
eng:profitable; beneficial
<eg>
yue:圍返條數 (wai4 faan1 tiu4 sou3)
eng:summing up the cost
<eg>
yue:餐飯為起每人四十蚊。 (caan1 faan6 wai4 hei2 mui5 jan4 sei3 sap6 man1.)
eng:The meal costs an average of forty dollars per head.
<eg>
yue:一碗拉麪 850 yen，圍返港紙都只係64蚊。 (jat1 wun2 laai1 min6 baat3 baak3 ng5 sap6 jen1, wai4 faan1 gong2 zi2 dou1 zi2 hai6 luk6 sap6 sei3 man1.)
eng:A bowl of ramen costs 850 yen, which when converted to Hong Kong Dollars is just $64.