sea·​mark | \ ˈsē-ˌmärk How to pronounce seamark (audio) \

Definition of seamark

1 : a line on a coast marking the tidal limit
2 : 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,, "Shark Week is a go! First promo teaches that sharks have 2 penises," 2 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seamark.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of seamark

15th century, in the meaning defined at sense 1

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

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Cite this Entry

“Seamark.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2021.

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