An angle-measuring device is a tool used to determine the angle between two lines or surfaces. Synonyms for this term may vary depending on the context in which it is used. Some common alternatives for angle-measuring device may include protractor, goniometer, angle gauge, inclinometer, clinometer, or slope meter. While all of these tools serve the same fundamental purpose of measuring angles, they may have subtle differences in design or application that make them more suited to specific tasks. Regardless of the terminology used, angle-measuring devices are valuable tools for a wide range of applications, from carpentry to engineering and beyond.