Back-formation refers to the process of creating a new word by removing an affix from an existing word. However, there are various synonyms for this term that can be used to describe this linguistic phenomenon. One such synonym is word formation, which encompasses the creation of new words through a variety of processes. Another synonymous term is derivation, which involves the formation of new words by adding affixes or modifying existing ones. Similarly, neologism refers to the creation of entirely new words or phrases, often through the blending of existing ones. Understanding these synonyms can help linguistics and language enthusiasts better communicate and analyze the creation and evolution of language.