fine-tune

Verb

WordNet 3.0

Verb (3)

  1. improve or perfect by pruning or polishing“refine one's style of writing”Synonyms: polishrefinedown
  2. adjust finely“fine-tune the engine”Synonyms: tweak
  3. make fine adjustments or divide into marked intervals for optimal measuring“calibrate an instrument”“graduate a cylinder”Synonyms: calibrategraduate
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Webster's Dictionary (GCIDE)

fine-tune \fine-tune\ v. t. to adjust carefully and precisely so as to achieve optimum performance or efficiency; as, The mechanic fine-tuned the engine. [WordNet 1.5]
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