Dog
Psychological (Freud)
In depth psychology the dog often embodies the loyal, instinctual parts of one's own nature and the need for closeness and devotion. When it growls or bites, it may mirror repressed aggression or an impulse experienced as threatening.
Oriental reading
In the tradition of Ibn Sirin the dog often signifies a person of low standing, a servant, or a persistent adversary. A friendly dog, however, may mean a loyal protector or faithful guardian.
Animals
Dream interpretation is for self-reflection and entertainment — it is not a medical or psychological diagnosis.