We found 13 dictionaries that define the word ace in the hole:

General (8 matching dictionaries)

1. ace in the hole, the ace in the hole: Merriam-Webster
2. ace in the hole: Wiktionary
3. ace in the hole: Infoplease Dictionary
4. ace in the hole: Dictionary.com
5. Ace in the Hole (Cole Porter song), Ace in the Hole (George Strait song), Ace in the Hole (band), Ace in the Hole (film), Ace in the Hole, Ace in the hole: Wikipedia, the Free Encyclopedia
6. Ace in the Hole: TheFreeDictionary.com
7. Ace in the hole: Phrase Finder
8. ace in the hole: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

9. Ace in the Hole: Legal dictionary

Computing (1 matching dictionary)

10. Ace in the Hole: Encyclopedia

Medicine (1 matching dictionary)

11. Ace in the Hole: Medical dictionary

Miscellaneous (1 matching dictionary)

12. ace in the hole: Idioms

Slang (1 matching dictionary)

13. Ace in the Hole: Urban Dictionary

Definitions from Wiktionary (ace in the hole) ▸ noun:  (US, idiomatic, informal) Synonym of ace up one's sleeve Similar: upper hand, leg up, trump, one up, hole in one, edge, overcard, powerhouse, honor, stroke of fortune, more... Opposite: disadvantage, weakness, vulnerability Types: secret weapon, trump card, insurance policy, ace up one's sleeve, more... Phrases: an ace in the hole, Ace in the Hole Band, more... ▸ Words similar to ace in the hole ▸ Usage examples for ace in the hole ▸ Idioms related to ace in the hole ▸ Wikipedia articles (New!) ▸ Words that often appear near ace in the hole ▸ Rhymes of ace in the hole ▸ Invented words related to ace in the hole