a shortened form of submarine, the boat, a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States, A substitute; specifically, one who is willing to serve as a substitute for a regular compositor on a newspaper, verb_ To coat with a layer of adhering material; to planarize by means of such a coating, microscopy To prepare (a slide) with an layer of transparent substance to support and/or fix the sample, UK To perform the work of a subeditor or copy editor; to subedit, intransitive verb_ To act as a substitute, To put or use (a person or thing) as a substitute