Financial terms: A glossary of useful terminology Letter: R All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z R R&D R R-Squared R Rate of Return R Real Rate of Return R Receipts R Record Keeping R Redemption R Redemption Fee R Refinance R Rent-to-Buy R Repossess R Return R Return on Investment (ROI) R Revenue R Rider R Risk R Risk Tolerance