Central and Patchboard

Central noun - A thing or place that is of greatest importance to an activity or interest.

Patchboard and central are semantically related. In some cases you can replace term "Patchboard" with "Central", this nouns are similar.

Nearby Words: center, centre, centralize, centralise, centrally

Patchboard noun - Telephone central where circuits are completed with patchcords.

Central and patchboard are semantically related. You can use "Central" instead a noun "Patchboard".