When (adverb)

  1. At what time.
  2. During the time that.
  3. At the same time that.
  4. At any time.
  5. At some indefinite time in the future.

Origin:

Middle english, from old english hwǣnne; akin to old high german hwanne when, latin quando when.

Examples:

  1. When will you be back?
  2. When did you see him?
  3. I'll call you when I get there.
  4. When will it stop raining?
  5. I'll tell you when I'm ready.
Some random words: perdition, whoa, weatherstrip