Root cellar and Storage space

Root cellar noun - An excavation where root vegetables are stored.

Storage space and root cellar are semantically related. In some cases you can use "Storage space" instead a noun phrase "Root cellar".

Storage space noun - The area in any structure that provides space for storage.

Root cellar and storage space are semantically related. Sometimes you can replace phrase "Root cellar" with "Storage space", this phrases are similar.