Meanings
From stud poker in which there is one unknown card called the "hole card", referring to the optimum "hole card" being an ace.
How to pronounce "ace in the hole":
AU
Synonym of ace up one's sleeve
Example: "Our ace in the hole left our opponents stupefied; it isn't every day that an NBA star plays street basketball."
Example Sentences
1
I'm not worried about the competition because I have an ace in the hole.
2
He always keeps an ace in the hole during negotiations.
3
She saved her best ace in the hole for the final round.
4
The team's secret strategy was their ace in the hole.
5
I'm confident we will succeed with this project because we have an ace in the hole.
