certify - definition and synonyms

verb [transitive] 

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/ˈsɜː(r)tɪfaɪ/
present tense
I/you/we/theycertify
he/she/itcertifies
present participlecertifying
past tensecertified
past participlecertified
  1. 1
    to state officially that something is true, accurate, or of a satisfactory standard

    Beef exports must be certified safe and disease-free.