data structures – Can array list act like tree?

I’m talking about data structures tree, we know that there’s parent and children which branching each other.

I feel if we save data to tree is same like multidimensional array.

What am i talking about is array in high level program language that no need declare size of array.

Tree=[vehicles]
vehichles=[cars,planes]
cars=[mustang,ferrari]
planes=[boeing788,boeing789]

we can say index 0 of array tree is parent