agate line

noun

: a space one column wide and 1/14 inch deep used as a unit of measurement in classified advertising

Word History

First Known Use

1870, in the meaning defined above

Time Traveler

The first known use of agate line was in 1870

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Browse Nearby Words

agate jasper

agate line

agate opal

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Cite this Entry

Style

“Agate line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agate%20line. Accessed 10 Nov. 2025.

Copy Citation

Last Updated: 4 Nov 2025 - Definition revised

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