Definition of spells:
(n) :
Words or a formula supposed to have magical powers.
(n) :
A magical effect or influence induced by an incantation or formula.
(v) :
To put under the influence of a spell; to affect by a spell; to bewitch; to fascinate; to charm.
(v) :
(intransitive, transitive, sometimes with “out”) To write or say the letters that form a word or part of a word.
(v) :
(transitive) Of letters: to compose (a word).
(v) :
(transitive, figuratively, with “out”) To clarify; to explain in detail.