Minor frame refers to a secondary or subsidiary framework or structure that supports the main or primary one. Synonyms for this term include supplementary frame, secondary skeleton, auxiliary framework, support structure, and backup framework. These synonyms can be used interchangeably to describe a supporting structure that is secondary but necessary to ensure the stability and strength of the primary structure. By using these synonyms creatively, you can enhance your writing, add variety, and make your content sound more engaging and interesting. It's always good to have a range of alternative words to choose from to keep your writing fresh and dynamic - something that readers are sure to appreciate.