Fine-tune and Polish up

Fine-tune verb - Make fine adjustments or divide into marked intervals for optimal measuring.

Polish up and fine-tune are semantically related. In some cases you can use "Polish up" instead a verb phrase "Fine-tune".

Polish up verb - Bring to a highly developed, finished, or refined state.

Fine-tune and polish up are semantically related. Sometimes you can use "Fine-tune" instead a verb "Polish up".