English Reference
Noun

facet

n. countable
C1 Advanced US /ˈfæsət/ UK /fˈæsɛt/ facet UK spelling facets Anatomy Computing Mathematics

n.one part or side of a complex situation, idea, or object. It can also mean one of the flat, shiny surfaces on a cut diamond.

n.a particular aspect or feature of a multi-dimensional situation; alternatively, one of the flat surfaces of a cut gemstone. Often used to break down complex subjects into manageable components.


SIMPLE

We need to consider every facet of the problem.

CONTEXTUAL

The committee examined each facet of the new policy to ensure no group was unfairly disadvantaged.

COMPLEX

The diamond's brilliance is a result of how light interacts with every precisely angled facet, much like how a well-researched biography reveals every facet of a subject's character.

Usage

Commonly used with the preposition 'of' to describe parts of an abstract concept.

Many facets of modern life rely on GPS – not just the map apps on your phone or in your car.

The Conversation· 9 Sept 2026

The American social psychologist Jonathan Haidt, in The Anxious Generation , finds this a universal facet of younger generations on both sides of the Atlantic.

The Guardian· 4 Sept 2026

Borrowed from French facette.

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

This entry
Level C1 · Advanced
Frequency Occasional
Updated