Displacement (CCs) is the volume, in cubic centimeters, of a vehicles engine cylinder with its piston at bottom dead center, multiplied by the total number of cylinders in the vehicles engine.
Displacement refers to psychoanalysis, the unconscious shifting of feeling from its real object to another where it is less threatening to the ego. For example, shouting at the television set rather than arguing with the boss. This is why symbols are considered important in dreams.