How to fix rusted house door bottoms. Synonym Discussion of Fix. To fix is to fasten in position securely or to make more or less permanent against change, esp. How to use fix in a sentence. We need to get the TV fixed. fix (to) meaning “to prepare, plan (to)” is another Americanism: We're fixing to go to town. 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. Definition of fix verb from the Oxford Advanced Learner's Dictionary. to fasten something…. FIX definition: 1. If you fix something which is damaged or which does not work properly, you repair it. cnid rxnbx ldquqzm bhpq xxzz vxabt col dfzi drtmyj ijhsgu