A B (Trick)
A Gap
Aboard
Academy
Ace
Acid Drop
Active Around The Rim
Ad Court
Added Time
Address
Advance Lunge
Advantage
Aerials
AFC East
AFC North
AFC South
AFC West
Agricultural Shot
Aimbot
Air Ball
Air Raid Offense
Air Yards
Albatross
Alignment
All-Around
All Ball
All Day
All-Pro
All-Purpose Yards
All-Rounder
Alley Oop
Alligator Arms
Alphabet Soup
Alpine Skiing
Alternate Captain
Alternate Cheerleaders
American League Championship Series (ALCS)
American League Division Series (ALDS)
Amoeba Defense
Amplitude
Anchor Leg
Anchor Point
And One
Anhyzer
Antenna
Apparatus
Apple
Approach (Bowling)
Approach (Volleyball)
Approach Run
Approach Shot
Arabesque
Arch Position
Arm Ball
Armband
Artistic Gymnastics
Arrow Rest
Asian Handicap
Asking Rate
Assist
Assist Percentage
Assisted Tackle
Assists Per Game (APG)
At-Bat
Ate Him Up
Attack
Attack Block
Attacking Zone
Audible
Automatic First Down
Away
Axel Jump