plural switchboards
: a system used to connect telephone calls with many separate phone lines in a building
She used to work as a switchboard operator.
Angry callers flooded/jammed the company's switchboard. [=made telephone calls to the company]
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“Switchboard.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/switchboard. Accessed 19 Jun. 2026.
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