| v. t. | 1. | to adjust carefully and precisely so as to achieve optimum performance or efficiency; |
| Verb | 1. | fine-tune - improve or perfect by pruning or polishing; "refine one's style of writing" |
| 2. | fine-tune - adjust finely; "fine-tune the engine" Synonyms: tweak | |
| 3. | fine-tune - make fine adjustments or divide into marked intervals for optimal measuring; "calibrate an instrument"; "graduate a cylinder" |