Rat Meaning: Definition, Examples, and Translations

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rat

[ræt ]

Definitions

Context #1 | Noun

small rodent

A rat is a small rodent with a long tail, known for its ability to adapt to various environments and reproduce quickly. Rats are often considered pests due to their tendency to spread disease and damage property.

Synonyms

mouse, rodent, vermin.

Which Synonym Should You Choose?

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Word Description / Examples
rat

Use 'rat' mainly when referring to larger rodents, usually found in urban areas, sometimes with a negative connotation, as they are often associated with dirt and disease.

  • There are rats in the alley behind the restaurant.
  • He felt betrayed and called his friend a rat.
rodent

The term 'rodent' is more scientific and general, encompassing a large group of small mammals, including rats and mice. It's used in broader or more formal contexts.

  • Rodents can be a problem for farmers.
  • The scientist studied the eating habits of various rodents.
mouse

Use 'mouse' for smaller rodents, commonly found in houses and fields. It is often used in a neutral or even somewhat endearing way.

  • We found a mouse in the kitchen.
  • The children's book featured a brave little mouse.
vermin

Use 'vermin' to refer to various unwanted small animals, including rats and mice, that are considered pests. This word carries a strong negative connotation, suggesting that the animals are dirty and harmful.

  • The old house was infested with vermin.
  • He called the cockroaches and rats vermin, showing his disgust.

Examples of usage

  • Be careful, there are rats in the basement.
  • The city has a rat problem in certain neighborhoods.
Context #2 | Noun

traitor

Informally, a rat can also refer to a person who betrays others, especially their friends or colleagues. This term is commonly used in informal contexts to describe someone who is disloyal or untrustworthy.

Synonyms

informant, snitch, traitor.

Which Synonym Should You Choose?

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Word Description / Examples
rat

Often used in a negative way to describe someone who betrays others by giving away secrets or information, especially to authorities.

  • He was labeled a rat after he told the police about their plans.
  • Nobody wants to work with a rat who can't keep things confidential.
traitor

Has a strong negative connotation, referring to someone who betrays their country, group, or a close relationship.

  • During the war, he was seen as a traitor for helping the enemy.
  • She felt like a traitor when she shared her best friend's secret.
snitch

Has a negative connotation, used to describe someone who informs on others, typically out of self-interest or for a reward.

  • Nobody likes a snitch, especially among friends.
  • He snitched on his coworkers to get a lighter sentence.
informant

More neutral or professional term, usually referring to someone who provides information to authorities, often used in legal or criminal contexts.

  • The police relied on the informant to gather crucial information about the criminal organization.
  • As an informant, she provided valuable data that helped solve the case.

Examples of usage

  • I can't believe he ratted us out to the authorities.
  • Don't be a rat and keep our secret safe.
Context #3 | Noun

despicable person

In slang, a rat can be used to describe a despicable or contemptible person. This derogatory term implies that the person is deceitful, sneaky, or untrustworthy.

Synonyms

lowlife, scoundrel, scumbag.

Which Synonym Should You Choose?

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Word Description / Examples
rat

Use this when referring to someone who betrays others or acts deceitfully. It is often used to describe someone who informs on others to authorities.

  • He ratted on his friends to save himself
  • She's a rat for selling us out
scoundrel

This word is used in a somewhat old-fashioned or literary context to describe someone who is dishonest or unscrupulous. It often has a slightly less severe connotation than 'lowlife' or 'scumbag'.

  • The scoundrel tricked everyone at the fair
  • He's known as a charming scoundrel
scumbag

Use this word for someone who is extremely unpleasant or despicable. It has a very strong negative connotation and is quite vulgar.

  • He's a scumbag for treating her like that
  • Only a real scumbag would do something so horrible
lowlife

This term is used to describe someone of low moral character or social status. It's generally used in a broader sense to imply that someone is a morally corrupt person.

  • He's a lowlife who spends his days cheating and stealing
  • Only a lowlife would treat someone that way

Examples of usage

  • He's such a rat, always lying and cheating.
  • Don't associate with rats like him.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Biology

  • Rats are highly intelligent and social creatures that can live in complex communities.
  • They are known for their strong sense of smell, which helps them navigate and find food.
  • Rats reproduce quickly, with a single female able to give birth to up to 20 babies in one litter.

Cultural Significance

  • In many cultures, rats symbolize cunning and survival, but they are also seen as pests in urban areas.
  • The term 'rat' has also been used in a social context to describe a person who betrays others, especially in crime.

Pop Culture

  • Rats have appeared in various movies, such as 'Ratatouille,' where a rat aspires to be a chef, challenging stereotypes.
  • The character of Remy in 'Ratatouille' highlights the idea that anyone, regardless of their background, can pursue their dreams.

Science

  • Rats are widely used in scientific research due to their biological similarities to humans, helping in studies related to health and behavior.
  • The black rat was historically responsible for spreading the plague in Europe during the 14th century, showcasing their impact on human history.

Origin of 'rat'

Main points about word origin

  • The word 'rat' comes from the Middle English 'ratten,' which has roots in the Old Norse word 'ratt,' meaning 'to gnaw.'
  • Historically, the term 'rat' has been used since around the 14th century and was often associated with negative connotations.

The word 'rat' can be traced back to Middle English, where it originally referred to the rodent. Over time, the term expanded to include the metaphorical meanings of traitor or despicable person. The negative connotations associated with rats in terms of disease and destruction likely influenced the development of these additional meanings.


See also: ratchet, ratify, rats.

Word Frequency Rank

With rank #4,133, this word represents useful upper-intermediate vocabulary. Understanding and using it will help you express more complex ideas effectively.