synonym validate
Synonyms for validate. verb ascertain the truth, authenticity of something. 1  ratify star. 2  certify star. 3  confirm star. 4  legalize star. 5  substantiate star. 6  legitimize star. 7  corroborate star. 8  verify star.
verb. back up information, story. 1  approve. 2  authenticate. 3  bear out. 4  certify. 5  check on. 6  check out. 7  check up. 8  confirm. 9  declare true. 10  document. 11  double check. 12  endorse. 13  establish. 14  give nod. 15  justify. 16  okay. 17  prove. 18  ratify. 19  rubber-stamp. 20  strengthen. 21  substantiate. 22  support. 23  sustain. 24  validate. 25  verify.