Or the definition could even vary based on the situation. For example, in a “secret magic” game, all effects might be Greater if any “mundanes” are observing it, Lesser otherwise. If so, a caster could use Lesser Move Body to fly through the air without witnesses, but would need Greater Move Body if those unfamiliar with magic might catch a glimpse of him – otherwise, he’d immediately tumble to the ground if they did! In such a game, the rules for Specific Definition (p. 19) must change slightly: Don’t bother noting whether the effect is Lesser or Greater, because that will vary on the fly.