1 a the act or an instance of displacing; the process of being displaced. b an instance of this.
2 Physics the amount of a fluid displaced by a solid floating or immersed in it (a ship with a displacement of 11,000 tons).
3 Psychol. a the substitution of one idea or impulse for another. b the unconscious transfer of strong unacceptable emotions from one object to another.
4 the amount by which a thing is shifted from its place.
Useful english dictionary. 2012.