There are a plethora of synonyms for the term "metal case" that can be used to describe different variations of metal cases. Some of the most commonly used synonyms for a metal case include metal shell, metal cover, metal enclosure, metal housing, metal chassis, and metal frame. Metal cases can also be described as metal boxes, metal containers, metal casings, metal jackets, metal wrappers, and metal sheaths, depending on their particular design and intended purpose. Whether you're looking for synonyms to describe a protective metal case for electronic devices or a durable metal suitcase for travel, there are plenty of options to choose from.