A "semantic variant" refers to a type of language change where the meaning of a word or phrase shifts over time. This can occur due to cultural influences, technological advancements, or social changes, leading to new interpretations or uses of the original term. For example, the word mouse originally referred to a small rodent but has also come to mean a computer device used for navigation. In linguistics, semantic variants can create confusion or ambiguity in communication. Understanding these changes is essential for effective language use, especially in fields like translation and linguistic studies, where precise meanings are crucial.