clam up

verb

Definition of clam upnext
as in to hush
to stop talking the little girl clammed up when the doctor came into the room

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of clam up Everyone in the theater clammed up, as if embarrassed to have endorsed Max with laughter. — Jackson McHenry, Vulture, 29 Apr. 2026 Your language model would clam up from time to time to conserve its resources. — Amanda Gefter, Quanta Magazine, 10 Apr. 2026 Less sweat-trapping than many synthetic jackets, the Oreus kept me from clamming up while ski-touring in five-degree temps and dissipated sweat quickly when worn after strenuous climbs. — Kelly Bastone, Outside, 10 Feb. 2026 But when co-host Maria McErlane looked for details, Norton clammed up. — Joseph Wilkinson, Mercury News, 28 Jan. 2026 See All Example Sentences for clam up
Recent Examples of Synonyms for clam up
  1. hush
  2. dry up
  3. shut up
Verb
  • The lounge is a real scene, especially during afternoon tea, when a perfectly coiffed crowd has hushed discussions about worldly matters.
    — Condé Nast, Condé Nast Traveler, 7 Oct. 2026
  • The park has already taken some steps to hush their new attraction.
    — Lynette Rice, Deadline, 16 Sep. 2026
Definition of hush
Verb
  • But as that approach began to deliver diminishing returns, and freely available human data started to dry up, the labs have leaned much more on post-training and reinforcement learning.
    — Beatrice Nolan, Fortune, 16 Oct. 2026
  • In December 2024, Hot Hands Sports landed two clients, only for that well to dry up five months later.
    — Justin Birnbaum, Sportico.com, 16 Oct. 2026
Definition of dry up
Verb
  • Nobody was telling Meg to shut up in the comments section, as Chlöe’s music peers gave her a ton of love for the costume.
    — Michael Saponara, Billboard, 26 Oct. 2026
  • At breakfast, Victor won’t shut up about Tomica being a Traitor.
    — Alice Burton, Vulture, 23 Oct. 2026
Definition of shut up

Browse Nearby Words

clams up
clam up
clan
See all Nearby Words

Cite this Entry

“Clam up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/clam%20up. Accessed 28 Oct. 2026.

Copy Citation
Love words? Need even more definitions?

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

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of grotesque

See Definitions and Examples »

Popular in Grammar & Usage

See More

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

12 Lovely and Unusual Words for the Natural World

Why do we 'bury the lede?'

'Za' and 9 Other Words to Help You Win at SCRABBLE
See More

Popular

See More

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't
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
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night
See All