to make very small changes to something so that it is as good as it can possibly beverbjump to other results
fine-tune somethingVerb Forms present simple I / you / we / they fine-tune
he / she / it fine-tunes
past simple fine-tuned
-ing form fine-tuning
fine-tuningjump to other results
noun [uncountable] The system is set up but it needs some fine-tuning.