Definition of 'rat'
See related content
Image of 'rat'
© photolinc, shutterstock
Video: pronunciation of 'rat'
Example sentences containing 'rat'
These examples have been automatically selected and may contain sensitive content. Read more…
More idioms containing 'rat'
Trends of 'rat'
In Common Usage. rat is one of the 10000 most commonly used words in the Collins dictionary
View usage for:
Translations for 'rat'
British English: rat /ræt/ NOUN
A rat is an animal which has a long tail and looks like a large mouse.
...experiments with rats.
- American English: rat
- Arabic: جُرَذ
- Brazilian Portuguese: rato-preto
- Chinese: 老鼠
- Croatian: štakor
- Czech: krysa
- Danish: rotte
- Dutch: rat
- European Spanish: rata
- Finnish: rotta
- French: rat
- German: Ratte
- Greek: αρουραίος
- Italian: topo
- Japanese: ドブネズミ
- Korean: 쥐
- Norwegian: rotte
- Polish: szczur
- European Portuguese: ratazana
- Romanian: șobolan
- Russian: крыса
- Latin American Spanish: rata
- Swedish: råtta
- Thai: หนู
- Turkish: sıçan
- Ukrainian: щур
- Vietnamese: con chuột con vật
British English: rat VERB
If someone rats on you, they tell someone in authority about things that you have done, especially bad things.
They were accused of encouraging children to rat on their parents.
Definition of rat from the Collins English Dictionary
The moon is at the forefront of our minds as we celebrate the 50th anniversary of Neil Armstrong’s ‘small step’ on 20th July, 1969. This month, we’ve been exploring lunar terminology, as well as looking at how the moon has woven itself into the fabric of our everyday language.
Unlock language with the Paul Noble method
No books. No rote memorization. No chance of failure. Your chance to have a one-to-one lesson with best-selling language expert Paul Noble, try a FREE audio sample of his brand new Mandarin Chinese course.
Learning English: Making suggestions when travelling
Take a boat? Stay overnight somewhere? This article looks at some useful phrases you can use when discussing options about what to do when travelling.
Collins English Dictionary Apps
Download our English Dictionary apps - available for both iOS and Android.
Collins Dictionaries for Schools
Our new online dictionaries for schools provide a safe and appropriate environment for children. And best of all it's ad free, so sign up now and start using at home or in the classroom.
We have almost 200 lists of words from topics as varied as types of butterflies, jackets, currencies, vegetables and knots! Amaze your friends with your new-found knowledge!
Join the Collins community
All the latest wordy news, linguistic insights, offers and competitions every month.
13th edition of the Collins Dictionary out now!
Updated with all the very latest new words and senses, this new 13th edition is an unparalleled resource for word lovers, word gamers, and word geeks everywhere. #homeoflivingenglish
New collocations added to dictionary
Collocations are words that are often used together and are brilliant at providing natural sounding language for your speech and writing.