HP: Hit points, health points, whatever you want to call them, HP stands for stamina. Once a unit runs out of them, they can no longer battle.
SP: Skill points. Once this meter is exhausted, the unit can no longer use special skills.
ATK: Physical attack. Targets opponent's DEF.
DEF: Physical defense.
MAG: Magical attack. Targets opponent's RES.
RES: Magical defense.
ACC: Accuracy. Affects hit rate.
SPD: Speed. Affects evasion.
TEC: Technique. TEC determines whether or not additional effects occur from skills that have said effects. For example, an attack debuff will always work, but a skill that has the potential to inflict an attack debuff will always have a TEC% chance of doing so.
LUCK: Luck effects the likelihood of dealing a critical hit and the likelihood of evading one. Essentially, the formula for inflicting critical damage is Attacker's Luck - Defender's Luck.
MOV: My dream game would be something akin to Fire Emblem or Disgaea, so this stat exists to show how many spaces a unit can move, ranging from 3 to 8.