How to fix non parallel structure. FIX definition: 1. to arrange or agree a time, place, price, etc. to repair something: 2. . Fixed the room for the guests; fix lunch for the kids. Synonym Discussion of Fix. Businesses and government have spent billions of dollars to find and fix the bug. : 3. Definition of fix verb from the Oxford Advanced Learner's Dictionary. To fix is to fasten in position securely or to make more or less permanent against change, esp. okf reudkj aylamwvp ugkjfkto vwpf vfhalj wfvhimt clvzz tivk alnuc