English Reference
noun

ego

n.
US /ˈiɡoʊ/ UK /ˈiːɡəʊ/ ego UK spelling egos

  1. 01 B2 Upper Intermediate

    your sense of your own value and importance, often used when someone thinks too highly of themselves.

    an individual's sense of self-esteem or self-importance. Often used in a pejorative sense to describe arrogance or a fragile self-image.

    Simple

    He has a massive ego and hates it when people disagree with him.

    In context

    The manager's fragile ego made it difficult for him to accept constructive criticism from his subordinates without becoming defensive.

  2. 02 C1 Advanced Technical Science

    the part of your mind that is aware of yourself and the world around you.

    the part of the psychic apparatus that experiences and reacts to the outside world and mediates between primitive drives and social morals.

    Simple

    In his theory, the ego tries to balance what we want with what is possible.

    In context

    Freudian theory posits that the ego functions as a mediator between the impulsive desires of the id and the idealistic standards of the superego.

    Usage

    Usually used with the definite article 'the'.

    idsuperego
  3. 03 C2 Proficiency TechnicalAcademic Science

    the person used as the starting point on a family tree or chart.

    the individual from whose perspective a kinship chart is drawn or through whom relationships are traced.

    Simple

    On this family tree, ego is the person in the center marked with a square.

    In context

    In anthropological diagrams, kinship terms are defined relative to ego, regardless of the actual biological connections involved.

    Usage

    Typically used without an article in academic diagrams.

Artistically ambitious and with an ego the size of a small planet, Richard Strauss was rarely backwards in coming forwards.

The Guardian· 27 Aug 2026

Almodóvar may see Raúl, his alter ego, as something of a villain, but he has also described himself as a “victim” of his own passion for cinema.

The Guardian· 21 Aug 2026

From Latin ego (“I”). Chosen by Freud’s translator as a translation of his use of German Ich as a noun for this concept from the pronoun ich (“I”). Doublet of I and Ich.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin ego
Level C1 · Advanced
Frequency Common
Updated