If you dream of giraffe, its dream interpretation can be about how quiet you are, in your waking world. For the giraffe is one of the most quiet animals in the world. It seldom makes a sound. However, the giraffe has the vocal cords and ability to make sounds. It does call out to other giraffes when it desires to. The giraffe may make sounds as calls to warn others when it sees an enemy like a predator.
Maybe you, the dreamer, is being compared to a giraffe, because you are not talkative.
The dream interpretation depends on your situation and your intuition (gut feeling) on which meaning best fits your context (situation in life).