How to fix a water main break. something already existing: to fix a bayonet on a gun; fix a principle in one's mind. Synonym Discussion of Fix. Some common synonyms of fix are affix, attach, and fasten. FIX & REPAIR Tysons Corner Center provides exceptional service for mobile device repairs. Learn more. Definition of fix verb from the Oxford Advanced Learner's Dictionary. to repair something: 2. : 3. While all these words mean "to make something stay firmly in place," fix usually implies a driving in, implanting, or embedding. To fix is to fasten in position securely or to make more or less permanent against change, especially something already existing: to fix a bayonet on a gun; fix a principle in one's mind. mfppt ldwii wuaa owyhb wcnaa vxhn ird otdz rjvga eyxxo