UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/prəʊˈreɪt/, /ˈprəʊreɪt/

US:USA pronuncation: IPAUSA pronuncation: IPA/proʊˈreɪt, ˈproʊˌreɪt/

US:USA pronunciation: respellingUSA pronunciation: respelling(prō rāt, prōrāt′)

Inflections of 'prorate' (v): (⇒ conjugate)
v 3rd person singular
v pres pverb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing bird," "It is singing."
v pastverb, past simple: Past tense--for example, "He saw the man." "She laughed."
v past pverb, past participle: Verb form used descriptively or to form verbs--for example, "the locked door," "The door has been locked."

WordReference Random House Learner's Dictionary of American English © 2020
pro•rate /proʊˈreɪt, ˈproʊˌreɪt/USA pronunciation   v. [+ object], -rat•ed, -rat•ing. 
  1. to divide, distribute, or calculate in a proportionate way:He prorated the money for bonuses.

WordReference Random House Unabridged Dictionary of American English © 2020
pro•rate  (prō rāt, prōrāt′),USA pronunciation v.,  -rat•ed, -rat•ing. 
  1. to make an arrangement on a basis of proportional distribution.

  1. to divide, distribute, or calculate proportionately.
pro•rata•ble, adj. 
pro•ration, n. 
  • partial translation of pro rata 1855–60, American.

Collins Concise English Dictionary © HarperCollins Publishers::
prorate /prəʊˈreɪt; ˈprəʊreɪt/ vb
  1. chiefly US Canadian to divide, assess, or distribute (something) proportionately
Etymology: 19th Century: from pro rata

proˈratable adj proˈration n
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