synonymize

/sɪˈnɑnɪmaɪz/
verb
  1. To make words or phrases synonymous; to treat or express as having the same meaning.
    • Teachers often warn students not to synonymize every word without checking context.
    • The thesaurus helps you synonymize common words to add variety to your writing.
    • Some dictionaries synonymize 'begin' and 'start' without noting their slight differences.
Antonyms
What does "synonymize" mean? | whatsthatwordmean | whatsthatwordmean