Pro rate means determining or distributing something in proportionate parts. However, there are several synonyms for the word pro rate, such as allocate, apportion, distribute, and divide. The term allocate implies the distribution of a specific portion for an intended purpose. Apportion refers to the division of something among several individuals based on certain criteria. Similarly, distribute denotes the division of something among various recipients, while divide implies the separation of something into smaller parts. Other synonyms for the word pro rate include prorate, dispense, and parcel out, all of which convey the idea of determining or distributing something in proportional parts.