From Wiktionary, the free dictionary
Non-Sino-Vietnamese reading of Chinese 漂 (SV: phiêu).
(classifier cái) phao • (抛, 漂)
- a buoy
- phao cứu sinh ― a life preserver
(classifier tờ) phao • (抛, 漂)
- (informal) a cheat sheet, usually used without permission in a test