Panini is a popular Italian sandwich that is toasted and filled with various ingredients. There are several synonyms for the word "panini." Firstly, it is commonly known as a pressed sandwich. It is made by pressing two slices of bread together with filling in between on a heated grill. Secondly, it can also be termed as a grilled sandwich, indicating the cooking method of the sandwich. Another alternative synonym for panini is a sandwich melt. This name is appropriate for paninis that have a lot of melted cheese in them. Lastly, the term sandwich press or sandwich grill can be used to describe the cooking equipment used to make paninis.