synonymize

From synonym +‎ -ize.

• IPA^(key): /sɪˈnɒnɪˌmaɪz/

synonymize (third-person singular simple present synonymizes, present participle synonymizing, simple past and past participle synonymized)

1. (transitive) To express by a synonym or synonyms.

   Antonym: antonymize

   • c. 1605, William Camden, Remains concerning Britain : their languages, names, surnames, allusions, anagramms, armories, moneys, impreses, apparel, artillerie, wise speeches, provervs, poesies, epitaphs:

     This word fortis we may synonymize after all these fashions: stout, hardy, valiant, doughty, courageous, adventurous, brave, bold, daring, intrepid.

2. (taxonomy) To identify two taxonomic terms as synonyms, thus equating two potentially disparate categories.

• “synonymize”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.