Wiktionary
n. One of the 52 playing cards from a standard pack as used for bridge and poker, with a single pip, with a nominal value of 1, and with the diamonds suit.
WordNet
n. the ace in the diamond suit
Usage examples of "ace of diamonds".
I chose the ace of diamonds exactly because it represents wealth in fortune-telling, so it's a positive card that people respond well to.
Bride was engaged in the tedious but necessary practice of so cutting a pack of cards that the ace of diamonds remained at the bottom, when his former co-lodger burst in upon him, and there was a light of triumph in Lew’.
She fanned the cards out, the ace of diamonds under the ace of spades on the left and the ace of clubs on the right.
On the call, Robinson shows the jack of diamonds for a straight flush, beating McQueen, who turns up the ace of diamonds for a full house.
Then, as though revived by the trick he had taken, he followed up with the ace of diamonds and I had to follow suit.
Getting the last in theater had been agonizingly slow, but finally they were here, and they were the Ace of Diamonds Bondarenko had facedown on the card table.