double eagle

Short definition from Wiktionary

Noun

1. 1
   A gold coin with a face value of $20 formerly used in the United States, the double of the US eagle coin.
2. 2
   Three under par, one stroke short of an ace (a hole in one) on a par-five hole.
3. 3
   A representation of an eagle with two heads, as in the heraldic arms of Russia and Austria and in iconography from Antiquity onward (especially in the Roman Empire).
4. 4
   Alternative form of double eagle.