(pos:動詞)
<explanation>
yue:變到冇用，失去效力
eng:to become invalid
<eg>
yue:將交易作廢 (zoeng1 gaau1 jik6 zok3 fai3)
eng:to set aside a transaction
<eg>
yue:張優惠券過期作廢。 (zoeng1 jau1 wai6 gyun3 gwo3 kei4 zok3 fai3.)
eng:The coupon become invalid after its expiration date.
<eg>
yue:如果所標明嘅候選人姓名超過一人，選票將會被宣布作廢。 (jyu4 gwo2 so2 biu1 ming4 ge3 hau6 syun2 jan4 sing3 ming4 ciu1 gwo3 jat1 jan4, syun2 piu3 zoeng1 wui5 bei6 syun1 bou3 zok3 fai3.)
eng:A ballot will be declared invalid if more than one name is marked.