The term "construction hats" refers to a protective headgear that is worn by workers in construction sites. However, there are several other terms that can be used interchangeably with it. One such synonym is a hard hat. This term is used to describe the type of helmet that is worn to protect the head from impact. Another synonym is a safety helmet, which is a type of hard hat that is designed specifically to provide protection against accidents. Additionally, the term construction helmet is also a synonym for construction hats. Whatever the name might be, these helmets are essential for the safety of workers on construction sites.