gloss

an explanation or definition of an obscure word in a text

an alphabetical list of technical terms in some specialized field of knowledge; usually published as an appendix to a text on that field

the property of being smooth and shiny

an outward or token appearance or form that is deliberately misleading; "he hoped his claims would have a semblance of authenticity"; "he tried to give his falsehood the gloss of moral sanction"; "the situation soon took on a different color"

give a shine or gloss to, usually by rubbing

provide interlinear explanations for words or phrases; "He annotated on what his teacher had written"

provide an interlinear translation of a word or phrase

give a deceptive explanation or excuse for; "color a lie"