Synonym

noun
  1. A word or phrase that has the same or nearly the same meaning as another word or phrase in the same language. noun
    The words 'happy' and 'joyful' are synonyms.
    In some contexts, 'big' can be a synonym for 'large'.
  2. A person or thing so closely associated with a particular quality or idea that the mention of their name calls it to mind. noun
    His name has become a synonym for integrity.
    The brand is a synonym for luxury and quality.