particle · located at the extreme end or furthest point of a location

他住在胡同尽里头的一间房子。

verb · to give precedence or priority to someone or something

咱们尽着老人和小孩先上车。

verb · to be within the limits or scope of something such as time or money

尽这两百块钱，我们要买齐所有的聚会用品。

adverb, idiom · to the greatest extent or degree possible

在这次紧急任务中，每一位队员都在尽其所能。