Imprecise Skill Explanations??

just wondering what exactly some of the skill/spell explanations mean in terms of the game.

examples:nearby foes, adjacent to, nearby,target ally deals less damage in combat

seems odd that there is no clear unit of measurement involved for these.

Once you start to experiment with some of the area ranges in the game alot of the things you are asking becomes more clear.

Nearby Foes: means anyone in your direct proximity...if there were 100 mobs on you, only the ones actually able to attack you in melee would be affected.

Adjacent: used on spells/skill which have a single target, any creatures within melee attack range will be affected by whatever the spell prescribes.

Your post isnt very clear, if you want an answer to a specific spell/skill please state which.