Pronunciation: /eɪs ɪn ðə hoʊl/
noun a hidden advantage or resource that can be used if needed
A1 My lucky rabbit's foot is my ace in the hole.
A2 Having a backup generator is always a good ace in the hole during a power outage.
B1 His ability to speak multiple languages fluently is his ace in the hole when applying for jobs.
B2 The company's strong financial reserves are their ace in the hole during tough economic times.
C1 The secret weapon they had been saving for the final round proved to be their ace in the hole.
C2 Her photographic memory was her ace in the hole during the intense trivia competition.
preposition in
A1 I have an ace in the hole for winning the game.
A2 She kept her best player as an ace in the hole for the final match.
B1 The company's secret marketing strategy was their ace in the hole for success.
B2 The team's star player was their ace in the hole during the championship game.
C1 The negotiator always keeps a strong argument as an ace in the hole during tough discussions.
C2 The scientist had a groundbreaking discovery as his ace in the hole for winning the Nobel Prize.
formal The company's ace in the hole is their innovative research and development team.
informal I heard that John has an ace in the hole for getting out of trouble.
slang She always keeps a spare key as her ace in the hole.
figurative His ability to speak multiple languages fluently is his ace in the hole when it comes to landing international clients.
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is acing in the hole
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aced in the hole