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Synonyms

tough nut

Idioms  

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Getafe, seventh, often prove a tough nut to crack at home and they frustrated their neighbours.

From Barron's • Nov. 23, 2025

She adds the Spurs boss is "a tough nut to crack".

From BBC • Feb. 3, 2025

There are many other types of oaks to love, and telling them apart can be a tough nut to crack.

From Los Angeles Times • Jun. 1, 2023

AUSTIN, TEXAS—For canaries, learning to eat seeds can be a tough nut to crack.

From Science Magazine • Jan. 12, 2023

“It means you’re a tough nut to crack, Clare, and frankly, I am not a squirrel!”

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

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