木 (ki) means “tree” | MotiTan Japanese Dictionary

More examples

公園に木があります。kō en ni ki ga a ri ma su

There is a tree in the park.

公園の木に鳥がとまっています。kō en no ki ni tori ga to ma tte i ma su

A bird is perched in a tree in the park.

It centers on a woody plant and extends naturally to the solid material that comes from its trunk and branches.

樹木jumoku: A woody plant with a trunk and branches, used as a formal term for the plant itself.

幹や枝を持つ植物。また、その植物の幹や枝を加工して得る材料。miki ya eda o mo tsu shoku butsu ma ta so no shoku butsu no miki ya eda o ka kō shi te e ru zai ryō

木 (ki) is a native Japanese noun rather than a borrowed word, with a long-established meaning that includes both trees and their wood.

The kanji 木 (ki) is a common building block in characters such as 林 (hayashi) and 森 (mori), which represent groups of trees and make the basic meaning easier to recognize.