“A word inserted between the lines or in the margin as an explanatory equivalent of a foreign or otherwise difficult word in the text; hence applied to a simliar explanatory rendering of a word given in a glossary or dictionary. Also, in a wider sense, a comment, explanation, interpretation. Often used in a sinister sense: A sophistical or disingenuous interpretation. b. A collection of such explanations, a glossary; also, an interlinear translation of, or series of verbal explanations upon, a continuous text. 2. A poetical composition in which a stanza of some well-known poem is treated as a text for amplification, each of the successive stanzas of the ‘gloss’ being made to end with one of the lines or couplets of the text.” (From OED.n.1-2)