water vapor produced when water boils or evaporates; specifically refers to water in a gaseous state, as opposed to the broader term 蒸气 zhēng​qì which includes other gases like mercury vapor

to hang; to suspend; to hitch; to be snagged or caught on something

to use heat to change the shape or state of something, such as ironing clothes or perming hair

(bound form) machine; mechanism; engine