sounder

¹ American  

[soun-der] / ˈsaʊn dər /

noun

1. a person or thing that makes a sound or noise, or sounds something.

2. Telegraphy. an instrument for receiving telegraphic impulses that emits the sounds from which the message is read.

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sounder ² American  

[soun-der] / ˈsaʊn dər /

noun

1. a person or thing that sounds depth, as of water.

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sounder ¹ British  

/ ˈsaʊndə /

noun

1. an electromagnetic device formerly used in telegraphy to convert electric signals sent over wires into audible sounds

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sounder ² British  

/ ˈsaʊndə /

noun

1. a person or device that measures the depth of water, etc

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Etymology

Origin of sounder¹

First recorded in 1585–95; sound ¹ + -er ¹

Origin of sounder²

First recorded in 1565–75; sound ³ + -er ¹

Example Sentences

For this, Olsen turned to the Mars Climate Sounder instrument on NASA's Mars Reconnaissance Orbiter to measure the extent of the vortex via temperature measurements.

From Science Daily • Oct. 19, 2025

Last spring the transit board approved contracts with four security firms to patrol the stations, areas around the stations, the train cars themselves and the Sounder.

From Seattle Times • Mar. 3, 2024

An upgraded Cascades and Sounder extension to Lacey can induce I-5 drivers to shift to passenger rail to avert this egregious climate mistake.

From Seattle Times • Nov. 27, 2023

Stefan Frei will be in goal for the Sounders for at least two more years, according to a report Wednesday by Sounder At Heart.

From Seattle Times • Nov. 15, 2023

Maybe Sounder had pushed with his hind feet and dug a hole into which he had settled.

From "Sounder" by William H. Armstrong