General Change:
* Alteration: A modification or adjustment.
* Transformation: A complete change in form or appearance.
* Modification: A slight change or alteration.
* Conversion: A change from one form or state to another.
* Shift: A movement from one position to another.
* Variation: A change or difference in something.
* Mutation: A change in the genetic makeup of an organism.
* Evolution: A gradual change over time.
* Transition: A movement from one state or condition to another.
Specific Types of Change:
* Improvement: A positive change that makes something better.
* Enhancement: An improvement or increase in quality.
* Development: Growth or progress over time.
* Reformation: A change for the better, often involving a radical transformation.
* Revolution: A sudden and radical change in a system or society.
* Innovation: A new idea or method that makes a change.
* Reform: A change made to improve something.
* Adjustment: A minor change made to correct something.
* Adaptation: A change made in response to a new environment or situation.
Informal Terms:
* Switch: To change from one thing to another.
* Swap: To exchange one thing for another.
* Flip: To turn over or change direction.
* Alter: To change something, usually in a minor way.
* Tweak: To make a small change or adjustment.
The best word to use will depend on the specific context of your writing or conversation. Consider the type of change you're referring to, the degree of change, and the overall tone of your message.