Umpire 
To dream of an umpire implies that either a physical or spiritual guardian is helping you navigate your life at this time. Note the umpire's signals within the dream - are they positive or negative? This could be the guiding system or sign that you have been secretly wishing for recently.
Referee
To dream of a referee indicates an inner struggle between holding on to your ideas and values and giving in to the judgements and recommendations of others.
Arbiter
If you're an arbiter in a dream, it is warning you that you are above the rules or going out of control. To see or work with an arbiter in your dream, it means that you are currently going through a difficult time, or that you wish for a resolution to some conflict or problem in your life.
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