The term "speccing" or "specifying" is often used in design and manufacturing industries to refer to the process of outlining technical details or requirements for a product or project. Some useful synonyms for this word might include outlining, detailing, defining, describing, laying out, or specifying. Other related terms could include creating specifications, stating requirements, outlining parameters, or detailing technical specifications. In any case, the overall goal is to provide specific and detailed guidance for a project or product in order to ensure that it meets specific quality standards and technical requirements.