1. (verb) improve or perfect by pruning or polishing

• down
• polish
• refine

2. (verb) adjust finely

• tweak

3. (verb) make fine adjustments or divide into marked intervals for optimal measuring

• calibrate
• graduate

1. (verb) improve or perfect by pruning or polishing

• ameliorate
• amend
• better
• improve
• meliorate

2. (verb) adjust finely

• tune
• tune up

3. (verb) make fine adjustments or divide into marked intervals for optimal measuring

• adjust
• correct
• set

1. (verb) improve or perfect by pruning or polishing

• civilise
• civilize
• cultivate
• educate
• school
• train
• over-refine
• overrefine

1. (verb) improve or perfect by pruning or polishing

• cultivation
• cultivation
• culture
• culture
• finish
• finish
• polish
• polish
• refinement
• refinement
• elaboration
• refinement
• refiner

2. (verb) make fine adjustments or divide into marked intervals for optimal measuring

• calibration
• standardisation
• standardization
• graduate
• graduation