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Definitions

seaside

[see-sahyd] / ˈsiˌsaɪd /
ADJECTIVE
coastal
Synonyms
STRONGEST
marshy
WEAK
along a coast littoral marginal riverine skirting
ADJECTIVE
marine
Synonyms
STRONGEST
aquatic coastal deep-sea maritime naval saltwater seagoing
STRONG
littoral nautical oceanic sea seafaring seashore shore
WEAK
Neptunian abyssal hydrographic natatorial navigational ocean-going oceanographic pelagic
Antonyms
WEAK
freshwater
ADJECTIVE
marine/maritime
Synonyms
WEAK
Neptunian abyssal aquatic coastal deep-sea hydrographic littoral natatorial nautical naval navigational oceangoing oceanic oceanographic of the sea pelagic saltwater sea seafaring seagoing seashore shore
ADJECTIVE
thalassic
Synonyms
WEAK
Neptunian abyssal aquatic coastal deep-sea hydrographic littoral maritime natatorial nautical naval navigational oceangoing oceanic oceanographic of the sea pelagic saltwater sea seafaring seagoing seashore shore
NOUN
beach
Synonyms
STRONGEST
coast shore waterfront
STRONG
bank lakeshore lakeside littoral margin oceanfront seaboard seafront seashore shingle strand
NOUN
coast
Synonyms
STRONGEST
bank beach coastline seaboard shore shoreline
STRONG
littoral margin seacoast seashore strand
NOUN
seashore
Synonyms
STRONG
bank coast littoral oceanfront seaboard seafront shingle shore strand waterfront

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.

Rio received more than 2.1 million international visitors in 2025, a record for the seaside city.

From Barron's • Apr. 21, 2026

Treasury alleges were controlled by Chen and his Prince Group conglomerate ran hotels and casinos in the seaside city of Sihanoukville—and a bespoke watchmaker.

From The Wall Street Journal • Apr. 20, 2026

Hilton told me he has long loved Huntington Beach because it reminds him of Brighton, the seaside British town where he grew up.

From Los Angeles Times • Apr. 9, 2026

Inspired by seaside U.K. town of Brighton, the collection pays homage to photographer Martin Parr’s candid stills of life by the beach.

From Los Angeles Times • Apr. 3, 2026

As youngsters, we participated in all the usual seaside activities—which were fun, until my father got involved and systematically chipped away at our pleasure.

From "Me Talk Pretty One Day" by David Sedaris