Definition of "paying back" []

• A reciprocal group action (noun)

WordNet. Princeton University. 2010.

• "Each time I bought stock for myself, I picked up a few for Eli, too, and while he spent most of his money paying back investors and genuinely trying to turn Empire into a computer game, he managed to do pretty well alongside me, two unlikely success stories from Empire Road in the Spokane Valley."
• "I recalled Clemente and Neverman discussing paying back a loan."
• "After my graduation in June 1932, I went back to Lowell Park for another summer so I could save some money and begin paying back my debt for overdue tuition."