What is a synonym of to make larger and better?

Here are some synonyms for "to make larger and better", depending on the context:

General Improvement:

* Enhance

* Improve

* Upgrade

* Amplify

* Augment

* Bolster

* Strengthen

* Fortify

* Expand

* Develop

Specific to Size:

* Enlarge

* Expand

* Extend

* Magnify

* Increase

* Grow

Specific to Quality:

* Refine

* Perfect

* Optimize

* Elevate

* Exalt

* Better

* Improve

The best synonym will depend on the specific situation and the nuance you want to convey.