Pressboard is a type of heavy-duty paperboard that is commonly used to make products such as binders, file folders, and report covers. However, there are many synonyms for this word that refer to similar types of materials. Some examples of synonyms for pressboard include chipboard, boxboard, binder board, and cardboard. These materials are all known for their strength and durability, making them popular choices for various types of packaging and organizational products. Whether you are looking for a sturdy binder or a protective box for shipping, there are many options available when it comes to pressboard and its synonyms.