Are wizards able to cast different spells or repeated spells without saying the spell incantation and just by thought and wand movement. For example when Mrs. Weasly defeated Bellatrix.

  • You've cited an example so obviously they are able to. They're called non-verbal spells. What exactly is the question here? – Anthony Grist Aug 15 '13 at 8:33

Every wizard can do it, it's just a matter of experience. I guess difficult spells are more difficult to cast without an incantation and it can be said that is safer to cast it out loud. You literally "spell" it. :)

You can find many examples of no-incantation cast spells in those two previous questions: Why does Harry always cast spells out loud? and Why were there so many spells cast in the movies without saying the words to the spell?

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