Door sill and Doorsill

Doorsill and door sill are semantically related. In some cases you can use "Doorsill" instead a noun phrase "Door sill".

Doorsill noun - The sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway.

Door sill and doorsill are semantically related. Sometimes you can replace phrase "Door sill" with "Doorsill", this terms are similar.