What is the Sanskrit word for improvement?

There isn't a single perfect Sanskrit word for "improvement" as the concept can be nuanced. However, here are some options depending on the context:

General Improvement:

* उन्नति (unnati): This is a common word for progress, advancement, or upliftment. It signifies a positive change or a rise in quality or status.

* विकास (vikas): This means "development" or "growth" and can also be used to indicate improvement.

* सुधार (sudhaar): This refers to "rectification" or "correction," implying an improvement through fixing something that was wrong.

* प्रगति (pragati): This means "progress" and implies a positive change or advancement.

Specific Improvement:

* शोधन (shodhan): This means "purification" or "refinement," suggesting an improvement in quality or purity.

* परिष्कार (pariskar): This refers to "refinement" or "elaboration," implying an improvement through making something more detailed or refined.

The best word will depend on the specific context and the nuance you want to convey.