facet

American  

[fas-it] / ˈfæs ɪt /

noun

1. a small, polished, flat surface, usually in the shape of a polygon, such as one of the surfaces of a cut gem.

2. a smooth, flat surface cut on a fragment of rock by the action of water, windblown sand, etc.

3. aspect; phase.

   They carefully examined every facet of the argument.

4. Architecture. any of the faces of a column cut in a polygonal form.

5. Zoology. one of the corneal lenses of a compound arthropod eye.

6. Anatomy. a small, smooth, flat area on a hard surface, especially on a bone.

7. Dentistry. a small, highly burnished area, usually on the enamel surface of a tooth, produced by abrasion between opposing teeth in chewing.

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verb (used with object)

faceted, faceting, facetted, facetting

1. to cut facets on.

facet British  

/ ˈfæsɪt /

noun

1. any of the surfaces of a cut gemstone

2. an aspect or phase, as of a subject or personality

3. architect the raised surface between the flutes of a column

4. any of the lenses that make up the compound eye of an insect or other arthropod

5. anatomy any small smooth area on a hard surface, as on a bone

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verb

1. (tr) to cut facets in (a gemstone)

Etymology

Origin of facet

First recorded in 1615–25, from the French facette “little face”; see face ( def. ), -ette ( )

Explanation

A facet is one side or aspect of something. If you’re thinking about quitting your day job to become a circus performer, you should first consider every facet of what your new life would be like. Facet, which is related to the word face, can also refer to one of the flat “faces” of a diamond or other gem. This was the word’s original definition, and it was evidently seen as an apt metaphor for one side of a complex idea. When a problem has many parts to consider (or when it’s just a huge mess), you can describe it as multifaceted.

Example Sentences

“That’s only one facet of the retirement puzzle,” Ryan Noble, a certified financial planner with Prosperity Planning, said.

From MarketWatch • May 14, 2026

But maybe in some twisted reality, their donation really was a move of pure benevolence, and not a blatant way to worm their wealth into another facet of our everyday lives.

From Salon • May 6, 2026

Every facet of life - joy, despair and everything in between – co-existed under the strobe lights.

From BBC • Apr. 2, 2026

In probing every facet of Kahlo’s appeal, “Frida: The Making of an Icon” documents exactly why so many people look at Kahlo and see themselves.

From The Wall Street Journal • Apr. 1, 2026

All my life, the pageant has invaded every facet of my world, except for this room.

From "Dumplin'" by Julie Murphy