extension phone

1. 1.

   an additional telephone set that is connected to the same telephone line

   Synonymsextensiontelephone extension

   Broadertelephone

Questions about extension phone

What does extension phone mean?

extension phone means "an additional telephone set that is connected to the same telephone line".

What is another word for extension phone?

Close synonyms include extension, telephone extension. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is extension phone a common word?

extension phone is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.