What is the meaning of spell?

noun

• A psychological state induced by (or as if induced by) a magical incantation.
  • synonyms: enchantment, trance
• A time for working (after which you will be relieved by someone else. )
  • usage: "it's my go"; "a spell of work"
  • synonyms: go, tour, turn
• A period of indeterminate length (usually short) marked by some action or condition.
  • usage: "he was here for a little while"; "I need to rest for a piece"; "a spell of good weather"; "a patch of bad weather"
  • synonyms: while, piece, patch
• A verbal formula believed to have magical force.
  • usage: "he whispered a spell as he moved his hands"; "inscribed around its base is a charm in Balinese"
  • synonyms: magic spell, magical spell, charm

verb

• Orally recite the letters of or give the spelling of.
  • usage: "How do you spell this word" "We had to spell out our names for the police officer"
  • synonyms: spell out
• Indicate or signify.
  • usage: "I'm afraid this spells trouble"
  • synonyms: import
• Write or name the letters that comprise the conventionally accepted form of (a word or part of a word. )
  • usage: "He spelled the word wrong in this letter"
  • synonyms: write
• Relieve (someone) from work by taking a turn.
  • usage: "She spelled her husband at the wheel"
• Place under a spell.
• Take turns working.
  • usage: "the workers spell every four hours"