English Reference
noun

affection

n.
US /əˈfɛkʃən/ UK /ɐfˈɛkʃən/ af·fec·tion UK spelling affection's, affection's

  1. 01 B1 Intermediate

    a feeling of liking or caring for a person or an animal.

    a gentle feeling of fondness or liking. Uncountable in its general sense, though specific instances may be countable.

    Simple

    The dog showed great affection for its owner by wagging its tail.

    In context

    Despite their frequent professional disagreements, the two colleagues maintained a deep personal affection for one another that spanned several decades.

  2. 02 C2 Proficiency ArchaicTechnical Medicine

    a physical condition or a disease.

    a physical condition or disease, particularly one affecting a specific organ or part of the body.

    Simple

    The old medical book described a strange affection of the lungs.

    In context

    The physician noted a chronic affection of the nervous system which appeared to be exacerbated by the patient's environmental conditions.

    Usage

    In modern medicine, 'condition' or 'disorder' is almost always preferred over 'affection'.

  3. 03 C2 Proficiency AcademicFormal

    a quality or feature that something has.

    an attribute, quality, or property of a thing or substance.

    Simple

    The philosopher discussed the different affections of the human mind.

    In context

    The treatise explores the various affections of matter, such as extension and motion, within the framework of seventeenth-century physics.

Feeling affection toward a dog was not significantly associated with either healthier or less healthy coping styles.

Phys.org· 17 Aug 2026

Considering these two shows together as a critique of the service we comedy reviewers render – well, there’s ridicule (fair enough) but perhaps grudging affection too.

The Guardian· 14 Aug 2026

From Middle English affection, affeccion, affeccioun, from Old French affection, from Latin affectiōnem, from affectiō; equivalent to affect + -ion.

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

This entry
Origin Latin affectiōnem
Level C1 · Advanced
Frequency Frequent
Updated