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Definitions

thick as thieves

ADJECTIVE
close
Synonyms
STRONGEST
dear devoted familiar related
STRONG
attached loving private thick
WEAK
buddy-buddy chummy confidential cozy with inseparable kissing cousins making it with on top of each other palsy-walsy thick with
Antonyms
WEAK
casual cool detached dry foreign loose reserved
ADJECTIVE
hand in glove
Synonyms
WEAK
arm in arm hand and glove hand in hand in tandem thick

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.

"They're all thick as thieves communicating, and that's an amazing feeling."

From BBC • Apr. 9, 2026

“They were literally thick as thieves in the sense of sticking together and having each other’s back. They were best friends as well.”

From Washington Times • Apr. 7, 2022

We were thick as thieves, the two of us.

From New York Times • Feb. 22, 2022

We were thick as thieves for all the years I did ‘Dukes.’

From Fox News • May 29, 2021

When your boss says you should be more of a team player, that means she wants you to take on more of her work. thick as thieves.

From "Woe Is I" by Patricia T. O'Conner