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ace in the hole
01
a secret resource, skill, etc. that a person can use to their advantage when the need arises
What is the origin of the idiom "ace in the hole" and when to use it?
The idiom "ace in the hole" originates from the game of poker, where players are dealt a hand of cards, and one card (the "hole card") is dealt face-down and kept secret until the end of the game. The ace is typically the highest-ranking card in many variations of poker. Therefore, this idiomatic phrase is used to describe a secret advantage, resource, or strategy that someone keeps hidden and reserves for use in a pivotal or unforeseen circumstance.
Esempio
She kept her best idea as her ace in the hole, ready to present it when the timing was perfect.
In negotiations, he always has an ace in the hole, a hidden clause that gives him an advantage.
She's keeping all the details of their unscrupulous business practices as an ace in the hole should they ever try to fire her.
The detective had an ace in the hole, a witness whose testimony would turn the case around.
