Leaves fall down.
Meaning: This means that the leaves are moving from the tree or plant to the ground because they are no longer attached to the tree or plant.
Choice of Words: Leaves are the green parts of a tree or plant. Fall means to move downwards from a higher place to a lower place. Down means in a direction towards the ground. When you put them together, "Leaves fall down" means that the leaves are moving from the tree or plant to the ground.
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Related Expressions