speaking tube

noun

: a pipe through which conversation may be conducted (as between different parts of a building)

Word History

First Known Use

1822, in the meaning defined above

Time Traveler
The first known use of speaking tube was in 1822

Dictionary Entries Near speaking tube

speaking trumpet

speaking tube

speaking voice

See More Nearby Entries 

Cite this Entry

“Speaking tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/speaking%20tube. Accessed 22 Nov. 2024.

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