Trunnions are commonly used in engineering and construction fields, especially in machinery and equipment, to provide a pivoting point or a rotating axis. Sometimes, it can be difficult to find the right word to describe this important tool or feature. However, there are several synonyms that one can use to refer to trunnions, such as pivots, hinges, axles, pins, and gudgeons. These terms are interchangeable in most cases and can be used to convey the same meaning. Therefore, whether you are an engineer or a technical writer, these synonyms for trunnions can help you communicate more accurately and effectively.