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
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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.
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Dan Snierson, EW.com, 2 July 2020
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Dan Snierson, EW.com, 2 July 2020
Cite this Entry
“Seamark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seamark. Accessed 18 Jul. 2025.
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