substantiates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to provide proof or support for something. Example Sentence A deed substantiates ownership of a property. More Example Sentences The report substantiates the need for change. Synonyms supports; confirms; validates Antonyms disproves; refutes; denies Hear It! Say It! Write It! substantiates Switch to cursive Start Share with your friends:
