n. An alcoholic drink, usually sweet and of high flavor and perfume; a cordial.n. Especially— A strong and sweet wine like those grown in some southern places, such as Lunel, Alicant, and Cyprus, which are also called liqueur wines.n. A spirituous compound based upon brandy or pure alcohol, and wholly artificial in its composition. These liqueurs are in a certain sense the successors of those of the middle ages, which were supposed to be universal remedies. Their modern use is almost exclusively the gratification of the palate. See curaçao, Benedictine, chartreuse, maraschino, eau-de-vie de Dantzig (under eau-de-vie), anisette, and cordial.n. A mixture prepared for the purpose of dosing champagne, the effervescence and sweetness of the wine depending much upou, its composition. It consists either of wine or of fine brandy, or of a mixture of the two, with pure rockcandy dissolved in it.n. Same as liqueur-glass.To flavor or treat (wine) with a liqueur.