We found 5 dictionaries that define the word an ace in the hole:

General (4 matching dictionaries)

1. an ace in the hole: Merriam-Webster
2. an ace in the hole: Collins English Dictionary
3. an ace in the hole: Cambridge Advanced Learner's Dictionary

Miscellaneous (1 matching dictionary)

4. an ace in the hole: Idioms

▸ Words similar to an ace in the hole ▸ Usage examples for an ace in the hole ▸ Idioms related to an ace in the hole ▸ Wikipedia articles (New!) ▸ Words that often appear near an ace in the hole ▸ Rhymes of an ace in the hole ▸ Invented words related to an ace in the hole