- To dilute; to add water to.
- You need to water down the lemonade a bit more to make it less sweet, dear.
- (idiomatic) To make weaker.
- (idiomatic) To simplify or oversimplify; to make easier; to make less difficult.
- If you plan to teach this material to children, you may need to water it down.
- (idiomatic) To make less restrictive; to make more lenient.
to make weaker