ACES FULL: A full house with aces over any pair.

ACES UP: Two pairs, one of which is aces.

ACTION: A fold, check, call, bet, or raise. In certain
situations activities formally connected with the gamet
hat conveys information about your hand may also be
considered as taking action. Examples would be showing
your cards at the end of the hand, or indicating the number
of cards you are taking at draw.

AGGRESSIVE ACTION: A wager that could enable a
player to win a pot without a showdown; a bet or raise.
 

ADD-ON: The opportunity to buy additional
chips in some tournaments.

ADVERTISE: To make a bluff with the deliberate
intention of being exposed as a loose player.

ALL-IN: When you have put all of your playable money
and chips into the pot during the course of a hand, you
are said to be all-in.

ANTE: A prescribed amount posted before the start 
of a hand by all players.

More poker glossary, select letter:
A - B - C - D - E - F - G - H - I - J - K- L - M
- N - O - P - Q - R - S - T - U - V - W - X -Y - Z
 

A* - Bullet(s) (looks like a bullet, possibly a reference to the Dead Man's Hand, two pair 
of aces and eights, suggesting that Wild Bill drew a third bullet in the back, which filled his hand in death)

A* - MasterCard (the best card of its suit)

A* - Rocket(s) (looks like rockets)

A* - Seed(s) (???)

A* - As-Nas (the persian game from which some think poker is derived, which is probably 
a french mis-spelling for Az-Nas, "my beloved Ace")

A* - Bull(s) (???)

A* - Eye(s) (probably from snake eyes in dice)

A* - Sharp Toy(s) (or sharp tops, sharp on top, see also A4)

A* - Spike (spiked on top)

A* - Spot (all numbered cards are spots, 5-spots, etc, and an ace is a one-spot, or just spot)

A* - Tee Pee(s) (looks like tee pees)

Ac - Puppyfoot (looks like one)

Ad - Pigs Eye (???)

A-A - Pocket Rockets (looks like rockets)

A-A - Alan Alda (an alliteration, star of Mash)

A-A - Eyes of Texas (from the Elvis Presley song, probably an elaboration on dice)

A-A - Needles (looks like needles)

A-A - Rat's Eyes (an elaboration from dice?)
 

More Card Hand Names
Source: www.holdemsecrets.com