Extension and Lay-by

Extension noun - The act of making longer.

Lay-by and extension are semantically related. In some cases you can replace phrase "Lay-by" with "Extension", this terms are similar.

Nearby Words: extend, extended, extent, extensive, extensively

Lay-by noun - Designated paved area beside a main road where cars can stop temporarily.

Extension and lay-by are semantically related. You can use "Extension" instead a noun phrase "Lay-by".