WordWeb Online

1. To render motionless, as with a fixed stare or by arousing terror or awe
   "The snake charmer spellbinds the cobra";
   - fascinate, transfix, grip
    
2. Maintain the complete attention of (someone), e.g. because they are fascinated
   - magnetize, mesmerize, mesmerise [Brit], magnetise [Brit], bewitch, hypnotise [Brit], hypnotize
    
3. Put into a trance
   - entrance

Derived forms: spellbinding, spellbinds, spellbound

Type of: charm, hypnotise [Brit], hypnotize, influence, interest, mesmerise [Brit], mesmerize, tempt