surf
Americannoun
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the swell of the sea that breaks upon a shore or upon shoals.
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the mass or line of foamy water caused by the breaking of the sea upon a shore, especially a shallow or sloping shore.
verb (used without object)
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to ride a surfboard.
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to float on the crest of a wave toward shore.
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to swim, play, or bathe in the surf.
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to search haphazardly, as for information on a computer network or an interesting program on television.
verb (used with object)
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to ride a surfboard on.
We surfed every big wave in sight.
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to search through (a computer network or TV channels) for information or entertainment.
noun
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waves breaking on the shore or on a reef
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foam caused by the breaking of waves
verb
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(intr) to take part in surfing
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computing (on the internet) to move freely from website to website (esp in the phrase surf the net )
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to move freely between (TV channels or radio stations)
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informal to be carried on top of something
that guy's surfing the audience
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( in combination )
trainsurfing
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Related Words
See wave.
Other Word Forms
Etymology
Origin of surf
First recorded in 1600–10; earlier suff; of uncertain origin
Explanation
The surf is what you see when you stand on the beach and look at the ocean — waves rising and breaking on the shore. It’s also what you do when you ride those waves. Surf’s up, dude! Surf means "crashing waves," but it's also a verb meaning to ride those waves with a surf board. When you surf, you stand upright on a board and ride over breaking waves into the shore. A more figurative meaning of surf is "search casually," as in "channel surf," or click idly between TV stations. The origin of the word is a mystery, though it's thought to have first been used in reference to the Indian coast.
Vocabulary lists containing surf
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Visitors can learn to surf with a dog riding on the front of their board, or try night snorkeling or a Hawaiian cowboy-themed lūau.
From The Wall Street Journal • May 11, 2026
Neoclouds are trying to surf the wave of AI computing demand and quickly scale up.
From Barron's • May 7, 2026
The 8th annual Vans Jack’s Surfboards Pro, a World Surf League Qualifying Series 4,000-level event, draws a large crowd of spectators and surf enthusiasts to the five-day competition and festival.
From Los Angeles Times • Apr. 24, 2026
Not to be left behind, Niko Omilana from the Sidemen team scored a volley and then performed the "surf celebration" made popular by Manchester United's Matheus Cunha.
From BBC • Apr. 19, 2026
In the rolling surf, willing hands to steady the gunwale as their mates climbed in.
From "Atonement" by Ian McEwan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.