Oedipus Complex:A concept in Freudian psychology which refers to a child's feelings of desire for his or her opposite-sex parent and jealousy towards the same-sex parent.
Defense Mechanisms:Psychological strategies brought into play by various entities to cope with reality and maintain self-image.
Id, Ego, Superego: These are three parts of the psychic apparatus defined in Sigmund Freud's structural model of the psyche; they are theoretical constructs that describe how our minds work.