<p><strong>Noun:</strong></p><ul><li>two or more slices of bread with a layer of meat, fish, cheese, etc., between them (e.g., a tuna sandwich)</li><li>a partially slit bread roll, pita, etc., with a filling (e.g., a falafel sandwich)</li><li>open sandwich</li><li>something resembling or suggesting a sandwich, as something in horizontal layers (e.g., a plywood sandwich)</li></ul><p><strong>Verb:</strong></p><ul><li>to put into a sandwich</li><li>to insert between two other things (e.g., to sandwich a personal appointment between two business meetings)</li></ul>