one of the small, polished plane surfaces of a cut gem.

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

aspect; phase

They carefully examined every facet of the argument.

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

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

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

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

to cut facets on.

noun

angle , appearance , character , face , feature , front , hand , level , obverse , part , phase , plane , side , slant , switch , twist , aspect , frame of reference , light , regard , respect , pane