ace

Aces has been American slang for "the best" at least since the first years of this century, deriving from aces, the highest cards in poker and other card games. But ace for an expert combat flier who has shot down five or more enemy planes appears to have been borrowed from the French as, "ace," during World War 1. From there ace was extended to include an expert at anything. The card name ace comes ultimately from the Greek 'as, one.

my grandfather was a world war 1 ace pilot

by tree girl May 14, 2005

aces

Something fantastic or extremely fortunate; derived from the best starting hand in Hold 'Em poker, a pair of aces. (Odds of getting aces: about 1 in 220)

That party last night with the coke and the hookers... fucking aces, man.

by Benjamin Fatbody December 3, 2003

ac’

Ac’ is short for Actavis, a prescription cough syrup used to make “lean” also known “purple drank”

Guy 1: “Ay you pass me the Ac’ “
Guy 2: “Nah bro I’m still sippin hold on”

by TK5wishaa May 23, 2018

ace

Slang for asexual.

No, I won't sleep with you. I'm an ace.

by theflying_clubcup January 24, 2009

ac

Alternating Current

This type of electrical current is called alternating because it switches direction. Direct current (DC) is often seen as the opposite of AC since DC only flows in one direction. Alternating current is used in most applications including the electricity that comes out of the outlet in your wall.

The AC flowing through this wire will kill you.

by IIT Deep July 1, 2005

ace

To pass a test or quiz. Often used in school.

I totally aced that math quiz; I got a 96%.

by Mimz October 19, 2005

Ace

When Playing Call of Duty or any other shooter is playing search and destroy. That one person kills all six enemies in one round.

I killed all of you and Aced it!

by After zZz Schock November 2, 2010