seaport

noun

sea·​port ˈsē-ˌpȯrt How to pronounce seaport (audio)
Synonyms of seaportnext
: a port, harbor, or town accessible to seagoing ships

Examples of seaport in a Sentence

Boston is a major seaport in the northeastern U.S.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Below the Rock was a seaport and an airstrip with regular military flights to London. — Literary Hub, 31 Aug. 2026 During the 19th century, President Abraham Lincoln used the Prize Act of 1812 to blockade Confederate seaports—an act that was contested and eventually upheld by the Supreme Court. — Sasha Rogelberg, Fortune, 28 Aug. 2026 As soon as this Sunday, a Long March 5 rocket will launch from a coastal seaport in China, carrying the Chang’e 7 lunar exploration mission, Ars reports. — Stephen Clark, ArsTechnica, 21 Aug. 2026 These include data centers, advanced manufacturing plants, EV fleet operators, critical transportation infrastructure such as airports or seaports, and commercial real estate developers who are leasing large industrial properties, said Ramamurthy. — Ray Fernandez, Forbes.com, 21 Aug. 2026 See All Example Sentences for seaport

Word History

First Known Use

circa 1520, in the meaning defined above

Time Traveler
The first known use of seaport was circa 1520

Rhymes for seaport

See All Rhymes for seaport

Browse Nearby Words

sea pork
seaport
seapost
See all Nearby Words

Cite this Entry

“Seaport.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seaport. Accessed 5 Sep. 2026.

Copy Citation

Kids Definition

seaport

noun
sea·​port -ˌpō(ə)rt How to pronounce seaport (audio)
-ˌpȯ(ə)rt
: a port, harbor, or town within reach of seagoing ships

More from Merriam-Webster on seaport

Thesaurus: All synonyms and antonyms for seaport

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 4
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
anagrams on a chalk board
Word Builder Quiz Vol. 2 Pick the letter that when added to a word will ma...
See All