Meaning of certificate of registry

certif'icate of reg'istry

Pronunciation: [key]
— Naut. Naut.
  1. a document issued to a U.S. vessel engaged in foreign trade, stating its name, nationality, ownership, etc., and claiming for it all privileges pertaining to U.S. nationality.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.