WS: Weapon skill, This is the Stat used for attacking.
BS: Ballistic Skill, This is the stat used for Thrown or Missile weapons (Bows, throwing stars, etc.)
S: Strength, Wrestling and grapples are used here.
T: Toughness, This stat is tested in situations of harsh pain or mind effecting elements.
INT: Intelligence, This stat is tested with Magic and perception tests.
AG: Agility, This stat is tested with Dodges, Quick movement and other fast actions.
ATT: This number represents the amount of attacks you have per turn.
W: Wounds, These are in-game health points.
SB: Strength Bonus, This number is the base damage of all of your melee attacks.
TB: Toughness Bonus, This number is the deduction value of any damage towards any character.