What Does "Grey Matter" Mean?
"Grey matter" is an English idiom. It is a colloquial term referring to the brain or one's intellect and mental capabilities.Examples in Sentences
Here are three examples of the idiom "grey matter" used in a sentence:- The human brain is a remarkable organ responsible for all our thoughts and actions; it's sometimes referred to as grey matter.
- As we age, it's essential to engage in activities that stimulate grey matter and keep our cognitive abilities sharp.
- Problem-solving and critical thinking rely on the grey matter in our brains.

What Is an Idiom?
An idiom is a commonly used expression whose meaning does not relate to the literal meaning of its words. In other words, if you were to translate "Grey Matter" word for word, there is no guarantee the translation would help you to understand the meaning.An idiom often includes a cultural or historical context that makes it difficult for non-native English speakers to understand. A phrase is classified as an idiom when a direct translation of the words does not reveal the meaning. Most idioms rely on shared knowledge or experiences known only to a specific community.
A Quick Test
You now know what "grey matter" means, but are you good at English idioms? Let's see!
Gold

Silver

Bronze
- This test has questions.
- A correct answer is worth 5 points.
- You can get up to 5 bonus points for a speedy answer.
- Some questions demand more than one answer. You must get every part right.
- Beware! Wrong answers score 0 points.
- 🏆 If you beat one of the top 3 scores, you will be invited to apply for the Hall of Fame.
Scoring System
Guru (+)
Hero (+)
Captain (+)
Sergeant (+)
Recruit (+)
Guru (+)
Hero (+)
Captain (+)
Sergeant (+)
Recruit (+)
- Do you disagree with something on this page?
- Did you spot a typo?