1,400 new words in our dictionary! — Parasocial, glow-up, promposal & more
1,400 new words in our dictionary! — More

rein (in)

verb

Definition of rein (in)next
as in to contain
to keep from exceeding a desirable degree or level (as of expression) try to rein in your spending, so you have some money left for saving

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for rein (in)
  1. contain
  2. regulate
  3. curb
  4. control
  5. keep
  6. restrain
Verb
  • The glasses contain the displays and sensing hardware, while the external puck handles much of the computing and power.
    — Kaif Shaikh, Interesting Engineering, 24 Sep. 2026
  • Today, the mechanisms that contained the initial energy shock are faltering.
    — RICHARD HAASS, Foreign Affairs, 23 Sep. 2026
Definition of contain
Verb
  • Unlike conventional sports books, which operate on the basis of licenses issued by states, Kalshi and Polymarket argue they are exclusively regulated at a federal level by the Commodity Futures Trading Commission.
    — Jeff John Roberts, Fortune, 24 Sep. 2026
  • Sanders and Casar’s proposal would therefore shift the question from how to regulate superintelligence to whether the United States should permit its development at all.
    — Aamir Khollam, Interesting Engineering, 23 Sep. 2026
Definition of regulate
Verb
  • Turkey, for its part, has long been pressing Iraq to curb groups with links to the PKK and other non-state armed groups from operating in Sinjar.
    — ABC News, ABC News, 24 Sep. 2026
  • Lower water levels in lakes and rivers are significantly curbing essential hydroelectric generation at sites such as the Hoover Dam in the western United States.
    — Johannes Teyssen, Fortune, 23 Sep. 2026
Definition of curb
Verb
  • The June agreement collapsed after disputes over the memo's vague wording, including language related to who would control the strait.
    — Ava Pukatch, NPR, 26 Sep. 2026
  • Springs store energy before releasing it in a jump, but that release makes the distance difficult to control.
    — Atharva Gosavi, Interesting Engineering, 26 Sep. 2026
Definition of control
Verb
  • In its evolution, resulting in eight ships of varying sizes and amenities, Oceania Cruises keeps its finger on the culinary pulse, staying current with food and drink trends.
    — Condé Nast, Condé Nast Traveler, 23 Sep. 2026
  • During the ensuing pursuit, the Lexus kept its lights off, reached speeds up to 65 mph and went airborne multiple times, the report says.
    — arkansasonline.com, arkansasonline.com, 23 Sep. 2026
Definition of keep
Verb
  • Chinese leader Xi Jinping brought a message of peace to Washington this week, calling on both countries to restrain their competition and, above all, avoid war.
    — Ann Scott Tyson, Christian Science Monitor, 25 Sep. 2026
  • Adults can receive a $250 ticket for failing to properly restrain a child.
    — Lina Ruiz, Fort Worth Star-Telegram, 22 Sep. 2026
Definition of restrain
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.

Browse Nearby Words

reinforcing
rein (in)
reining
See all Nearby Words

Cite this Entry

“Rein (in).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rein%20%28in%29. Accessed 28 Sep. 2026.

Copy Citation
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!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of fungible

See Definitions and Examples »

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

More Commonly Mispronounced Words

Why do we use apostrophes to show possession?

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

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

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

14 Phobias You Probably Haven't Heard Of

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Do You Need a New Language Peeve?

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
image of the words cracker fly and sale arranged in a triangle with the word fire in the middle
Triple Play Quiz Find the word that pairs with each of the three g...
See All