Release of tension; attempt to put others at ease, ridiculing or feeling embarrassed by some aspect of self; taking things lightly. Sometimes much laughter can hide tears or sadness. Idioms: don’t make me laugh, laughing stock; laugh in somebody’s face; hollow laugh; laugh up one’s sleeve; laugh on the other side of your face.
Laughter in the spiritual sense signifies pure joy. It is now known that laughter has a healing quality, so to be conscious of it in dreams suggests that a healing has taken place.
Psychological / emotional perspective: If we ourselves are laughing we may be experiencing a release of tension. Often the object of our amusement will give a clue to the relevance of the dream in everyday life. It can also be seen as a sign of rejection.
To hear a crowd laughing suggests a shared enjoyment, if we do not have a sense of being laughed at.
Material aspects: Being laughed at in dreams suggests we may have a fear of being ridiculed, or may have done something which we feel is not appropriate. We may find ourselves embarrassing.