rat·​ter | \ ˈra-tər How to pronounce ratter (audio) \

Definition of ratter

: one that catches rats specifically : a rat-catching dog or cat

Examples of ratter in a Sentence

Recent Examples on the Web Cats proved so apt at their duties that the Egyptians linked the ratters to their religious deities. Jackie Mansky, Smithsonian, "A Brief History of Traveling With Cats," 14 Aug. 2017 In New York City, a rat-hunting club for owners of terriers and other dogs bred as ratters has become famous. National Geographic, "Homeless Cats Recruited to Fight Rising Tide of Rats," 29 Sep. 2017 The transition from ratter to pampered housecat had a ways to go, though. Jackie Mansky, Smithsonian, "A Brief History of Traveling With Cats," 14 Aug. 2017 Even in that small place, their reputations preceded them: legendary ratters, breakers of serpents, lightning fast and smart like all get out. Junot DÍaz, New York Times, "The Mongoose and the Émigré," 17 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ratter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of ratter

13th century, in the meaning defined above

Keep scrolling for more

Learn More about ratter

Statistics for ratter

Time Traveler for ratter

The first known use of ratter was in the 13th century

See more words from the same century

Keep scrolling for more

More Definitions for ratter


rat·​ter | \ ˈra-tər How to pronounce ratter (audio) \

Kids Definition of ratter

: a dog or cat that catches rats

More from Merriam-Webster on ratter

Rhyming Dictionary: Words that rhyme with ratter

Comments on ratter

What made you want to look up ratter? Please tell us where you read or heard it (including the quote, if possible).


to engage in dissolute behavior

Get Word of the Day daily email!

Test Your Vocabulary

Pass the Little Ribbons: A Pasta Word Quiz

  • rotelle pasta
  • Match the pasta to its meaning in English: Rotelle
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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