As used in this subchapter:
(1) "Other interested person" means any person other than a record holder who is interested in the permit or certified filing or any person whose direct interest would be served by the cancellation of the permit or certified filing in whole or part.
(2) "Certified filing" means a declaration of appropriation or affidavit that was filed with the State Board of Water Engineers under the provisions of Section 14, Chapter 171, General Laws, Acts of the 33rd Legislature, 1913, as amended.
(3) "Certificate of adjudication" means a certificate issued by the commission under Section 11.323 of this code.
(4) "Permit" means an authorization by the commission granting a person the right to use water.