What does "potpourri" mean?

Potpourri: A medley or mixture. Specifically: (a) A ragout composed of different sorts of meats, vegetables, etc., cooked together. (b) A jar or packet of flower leaves, perfumes, and spices, used to scent a room. (c) A piece of music made up of different airs strung together; a medley. (d) A literary production composed of parts brought together without order or bond of connection.