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gray matter

Idiom Science

Meaning

intelligence or brainpower

Example Sentences

"It takes a lot of gray matter to solve such a complex problem."

Related Expressions

art imitates life

art reflects real-life experiences or truths

cross your heart and hope to die

to swear that something is true, often said with sincerity

feel the pinch

to have financial difficulties; to feel short of money

rest easy

to be free from worry or fear

Put up walls

To create emotional barriers or distance from others.

leave something up in the air

to leave something undecided or uncertain