Dic: spell (some of its meanings as a noun)

5. N-COUNT

A spell is a situation in which events are controlled by a magical power.

• They say she died after a witch cast a spell on her.
• the kiss that will break the spell.

..... Cobuild

spell(2):

1. a sequence of words used to perform magic

2. the effect of a spell: the wizard's spell was broken

3. under someone's spell : fascinated by someone

.... Collins Essential

***

spell (1) - a psychological state induced by (or as if induced by) a magical incantation

trance, enchantment

mental condition, mental state, psychological condition, psychological state - (psychology) a mental condition in which the qualities of a state are relatively constant even though the state itself may be dynamic; "a manic state"

possession - being controlled by passion or the supernatural

captivation, fascination - the state of being intensely interested (as by awe or terror)

spell (4) - a verbal formula believed to have magical force; "he whispered a spell as he moved his hands"; "inscribed around its base is a charm in Balinese"

magic spell, magical spell, charm

speech communication, spoken communication, spoken language, voice communication, oral communication, speech, language - (language) communication by word of mouth; "his speech was garbled"; "he uttered harsh language"; "he recorded the spoken language of the streets"

conjuration, incantation - a ritual recitation of words or sounds believed to have a magical effect

hex, jinx, whammy, curse - an evil spell; "a witch put a curse on his whole family"; "he put the whammy on me"

.... http://www.thefreedictionary.com/spell