where the tennis ball lands into the service box and is not touched by the receiver.
That ace from Roger Federer was astonishing. Novak Djokovic couldn't return it.
by #Anonymous Potato November 6, 2018
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A tiny dick nigga who will never get a big dick
Yo that Dude ace has a shrimpie
by Vikkibando February 25, 2018
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Abbreviation for 'Armor Class'. In the latest edition of DnD, AC is a number which signifies the difficulty of hitting a target in combat; the higher the number, the harder it is.
It was impossible to hit that guy. His AC was /way/ too high.
by Grimrider December 7, 2002
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Your number one go to. Your ACE, the best card in your deck. Ride or die. The person who’s down for whatever, WHENEVER.
Man, Davonte. That’s my Ace dawg. He showed up when nobody would.

Khalil is my ACE, my right hand man.
by AyoQueennn October 2, 2018
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Ace will the most amazing person you will ever meet. They will be kind, caring and they like to think things through. Incredibly intelligent, a nerd in a cool way, into sci-fi and sci-fa. They will like older rock music and star wars. If you meet an Ace, make friends with them. It's worth it.
Ace: Anakin is the best
Pheobe: Whose Anakin?!
Ace: Star wars?! Just watch the films. He's in the prequels and he's in the originals too but in a metal suit.

Pheobe: What are the prequels and the originals?!
by DeviLs brOther April 16, 2021
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ACE (gaming) = All Competitors Eliminated. A gamer scores an ACE when they wipe out an entire enemy team. The number of competitors is irrelevant. However, considering that most games sport a 5 versus 5 format, the term has become synonymous (but not limited to) a 5k.
I just scored an ACE!
by Justanothermalaka January 4, 2019
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