validate
1. [ verb ] prove valid; show or confirm the validity of something
Related terms: invalidate confirm establishment
2. [ verb ] (law) declare or make legally valid
Synonyms: formalise formalize
Related terms: invalidate authorize sign co-sign probate formalization
3. [ verb ] give evidence for
Synonyms: corroborate
Related terms: confirm circumstantiate documentation
4. [ verb ] make valid or confirm the validity of, as of a document
Examples:

"validate a ticket"

Related terms: invalidate change
Similar spelling:   validated
  validatory
  validation
  validating
  vaulted
  validity