Advance in age is a phrase that refers to the process of growing older. The term can be broken down into two crossword solutions: LEND and GETON. LEND is a four-letter word that means to give money, goods, or services temporarily, usually with the expectation of repayment. GETON is a five-letter word that means to make progress or move forward. Together, these two words describe the process of advancing in age, which is the gradual progression of growing older.