1. (verb) To be afraid of. Expect with alarm.
  2. An unpleasant often strong emotion caused by anticipation or awareness of danger.
  3. An instance of this emotion.
  4. A state marked by this emotion.
  5. Anxious concern.
  6. Profound reverence and awe especially toward God.
  7. Reason for alarm.

The emotion of Fear is found in both the Bladder and Kidney meridians in the Water element.

Definition from Dictionary by Merriam-Webster.