Any one of the flat surfaces cut into a gem.

One among many similar or related, yet still distinct things.

One of a series of things, such as steps in a project.

(anatomy) One member of a compound eye, as found in insects and crustaceans.

(anatomy) A smooth circumscribed surface.

(anatomy) Any of the small joints at each segment of the spine that provide stability and help guide motion

(architecture) The narrow plane surface between flutings of a column; a fillet.

(mathematics) A face of codimension 1 of a polytope.

(computing) A criterion that can be used to sort and filter, such as the colour or size of products in an online store.

To cut a facet into a gemstone.