>林 (lín): This character means “forest” or “woods” and is composed of two 木 (mù) characters side by side. It represents a small forest or a group of trees. 森 (sēn): This character also means “forest” but represents a larger, denser forest than 林 (lín). It is composed of three 木 (mù) characters arranged in a triangle.

That's more logic between the symbols of tree, wood and forrest than between the same english words, and it even looks like some kind of tree.

Spanish has lots of those accent marks, so it's more than 26 letters, it's also accent marks.