What is the meaning of the word "shifting"?

Definitions:

  1. (of soil) unstable copy to clipboard adjective
    • shifting sands copy to clipboard
  2. changing position or direction copy to clipboard adjective
    • I drifted into the shifting crowd. copy to clipboard
  3. continuously varying copy to clipboard adjective
    • taffeta with shifting colors copy to clipboard
  4. the act of moving from one place to another copy to clipboard noun
    • One student's constant shifting disrupted the class. copy to clipboard

Synonyms: