noun, punctuation, place word, verb, directional · a woody perennial plant typically having a single stem or trunk and growing to a considerable height

公园里种了很多树。

idiom · to nurture, foster, or educate talent or people

十年树木，百年树人。

verb · to erect, set up, or establish something (such as a reputation or an enemy)

这位老师在学生面前树了一个好榜样。