daymark

noun

Definition of daymark

: a marker visible to pilots as a navigation guide in daylight

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First Known Use of daymark

1695, in the meaning defined above

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The first known use of daymark was in 1695

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Cite this Entry

“Daymark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/daymark. Accessed 29 Oct. 2020.

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