Synonyms for Authenticate

Synonyms starting with letter G

• guarantee

  verify, genuine, validate
• give credence to

  substantiate
• give the go-ahead
• give green light
• give the nod
• give stamp of approval
• give high sign
• give evidence
• give substance to
• go to bat for
• give a boost to
• go along with
• go with
• go for
• give the green light
• give nod
• give go-ahead
• give word
• genuine
• give weight to
• give proof of

  substantiate
• give something the thumbs up
• gallant
• grovel
• go out with
• go steady
• go together
• give testimony
• give for instance
• give proof