n. A child left or taken in the place of another; especially, in popular superstition, a strange, stupid, ugly child left by the fairies in place of a beautiful or charming child that they have stolen away.n. Figuratively, anything changed for or put in the place of another, or the act of so changing.n. One apt to change; a waverer.Exchanged: specifically applied to a child fancied to have been exchanged for another by the fairies.Given to change; inconstant; fickle: as, “studiously changeling,”