A surface shine or luster/lustre

A superficially or deceptively attractive appearance

To give a gloss or sheen to.

To make (something) attractive by deception

To become shiny.

A brief explanatory note or translation of a foreign, archaic, technical, difficult, complex, or uncommon expression, inserted after the original, in the margin of a document, or between lines of a text.

A glossary; a collection of such notes.

An expression requiring such explanatory treatment.

An extensive commentary on some text.

A brief explanation in speech or in a written work, including a synonym used with the intent of indicating the meaning of the word to which it is applied

An interpretation by a court of specific point within a statute or case law

To add a gloss to (a text).