Meaning

• (interrogative) When ever: emphatic form of when.

  "Whenever will I find time to finish that jigsaw?"

• At any time.

  "Feel free to visit whenever."

Meaning

• At any time that.

  "Visit whenever you want to."

• At the (single) time that, no matter when.

  "Tomorrow I'll get up whenever the sun rises."

• Every time that.

  "Whenever he has a pair of aces, his eyelids twitch."

• Regardless of the time that.

  "Income must be reported in the period in which it is earned, whenever payment is actually received."

• When.

  "Whenever I was a child, I lived in Arkansas."