noun

• a psychological state induced by (or as if induced by) a magical incantation
• a time for working (after which you will be relieved by someone else)
  "it's my go"
• a period of indeterminate length (usually short) marked by some action or condition
  "he was here for a little while"
• a verbal formula believed to have magical force
  "he whispered a spell as he moved his hands"

verb

• orally recite the letters of or give the spelling of
  "How do you spell this word?"
• indicate or signify
  "I'm afraid this spells trouble!"
• write or name the letters that comprise the conventionally accepted form of (a word or part of a word)
  "He spelled the word wrong in this letter"
• relieve (someone) from work by taking a turn
  "She spelled her husband at the wheel"