fine-tune

pronunciation

How to pronounce fine-tune in British English: UK [faɪn tju:n] word uk audio image

How to pronounce fine-tune in American English: US [ˈfaɪnˈtun, -ˈtjun] word us audio image

Verb:

improve or perfect by pruning or polishing
adjust finely
make fine adjustments or divide into marked intervals for optimal measuring

Example