sea·​mark ˈsē-ˌmärk How to pronounce seamark (audio)
: a line on a coast marking the tidal limit
: an elevated object serving as a beacon to mariners

Examples of seamark in a Sentence

Recent Examples on the Web The network promises more than 20 hours of new programming during the 32nd annual installment of the network's landmark (seamark?) franchise, including a special that marks the 20th anniversary of those breaching terrors known as Air Jaws. Dan Snierson,, 2 July 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'seamark.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of seamark was in the 15th century

Dictionary Entries Near seamark

Cite this Entry

“Seamark.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2023.

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