Yes, flux is a Scrabble word!

Verb

1. Move or progress freely as if in a stream

2. Become liquid or fluid when heated

3. Mix together different elements

Noun

1. The rate of flow of energy or particles across a given surface

2. A flow or discharge

3. A substance added to molten metals to bond with impurities that can then be readily removed

4. Excessive discharge of liquid from a cavity or organ (as in watery diarrhea)

5. A state of uncertainty about what should be done (usually following some important event) preceding the establishment of a new direction of action

6. The lines of force surrounding a permanent magnet or a moving charged particle

7. (physics) the number of changes in energy flow across a given surface per unit area

8. In constant change