- 戴帽子 dàimàozi to wear a hatTo wear a hat or a cap; to put on headgear
- 绿帽子 lǜmàozi cuckold(figuratively) a symbol of a man whose wife is unfaithful; often used in the phrase [[戴绿帽子|戴綠帽子|dai4 lu:4 mao4 zi5]] meaning "to be a cuckold"
- 红帽子 hóngmàozi red capa red hat or cap
- 大帽子 dàmàozi unwarranted chargeAn exaggerated categorization or an unfair label pinned on someone, usually to criticize or suppress them.
- 扣帽子 kòumàozi to label someoneto unfairly label or stigmatize someone with an offense or a bad name without proper investigation or analysis; to pin a label on someone
- 高帽子 gāomàozi dunce capA tall conical paper hat worn during public humiliation or as a dunce cap
- 摘帽子 zhāimàozi to take off a hatto take off a hat or cap; (figuratively) to be cleared of an unfair charge or to have a negative label or stigma removed
- 戴高帽子 dàigāomàozi to flatterTo praise someone excessively or place them on a pedestal; literally to put a tall hat on someone. Also written as [[戴高帽|戴高帽|dai4 gao1 mao4]] or [[戴高帽儿|戴高帽兒|dai4 gao1 mao4 r5]].
- 抢帽子 qiǎngmàozi to sell shortTo engage in short-term speculation on the stock market by buying low and selling high (or selling high and buying low) within the same day to profit from price fluctuations.
- 方帽子 fāngmàozi mortarboardacademic cap with a flat square top and a tassel, often worn at graduation ceremonies
- 瓦楞帽子 wǎléngmàozi commoner's hattype of headwear with ridges in the middle, typically worn by ordinary people in ancient China
- 可着头做帽子 kězhetóuzuòmàozi to cut one's coat according to one's clothLiterally "to make a hat according to the size of the head"; used as a metaphor for living within one's means or being careful with spending to avoid any waste.
- 戴绿帽子 dàilǜmàozi to be a cuckoldTo be cheated on by one's wife or partner; traditionally applied only to men but now used more generally
- 铁帽子王 tiěmàoziwáng iron-cap prince(historical) a title of nobility during the Qing dynasty that was granted perpetual inheritance, meaning the title could be passed to descendants without being downgraded
- 帽子戏法 màozixìfǎ hat trickThe achievement of a single player scoring three goals in one game, particularly in football; originally from cricket, where a bowler takes three wickets on consecutive deliveries.deliveries.ies