To make a formal offer of:提交：提出…的正式提议：put in a plea of guilty.正式提出犯罪诉讼
To interpose:插入，插话：He put in a good word for me.他插进来为我说了一句好话
To spend (time) at a location or job:花时间：在某一场所或工作上花费（时间）：The inmate had put in six years at hard labor. She put in eight hours behind a desk.犯人已经做了六年的苦工。她在花了八小时办公
To plant:种植：We put in 20 rows of pine trees.我们种植了20排松树
Nautical To enter a port or harbor:【航海】 进港：进入口岸或港口：The freighter puts in at noon.货轮中午时进入港口