1.機械裝置；機械作用An airplane engine is a complex mechanism. 飛機引擎是種複雜的機械裝置。
2.機構；結構The mechanism of local government is far from perfect. 地方政府的結構還很不完善。
3.（自然現象產生的）物理過程；【化】歷程；【生】機制Meteorologists believe this pressure jump is the mechanism responsible for storms and tornadoes. 氣象學家認為這一氣壓的突然升高是暴風雨和颶風形成的物理機制。
4.辦法，途徑There's no mechanism for changing the decision. 沒有辦法改變這一決定。
5.（繪畫等的）手法，技巧The three sisters were all well-versed in the mechanism of novel writing. 三姊妹都熟諳寫小說的技巧。