root
(the part of a plant that grows underground, through which the plant gets water and minerals)
- She tied the boat to a tree root.
- You have to pull up weeds by the roots.
(the main cause or source of)
- I’m trying to get to the root of this problem.
- I see money as the root of all evil.
route
(a way from one place to another)
- Our hotel was on a bus route.
- Which is the shortest route to the beach?