Definition of "changeling" [change•ling]

• A child secretly exchanged for another. (noun)
• Archaic A changeable, fickle person. (noun)
• Archaic A person of deficient intelligence. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "How about Lucas and Sascha's little one in changeling form?"
• ""He didn't hurt the-" the word changeling was in her mind but would not come out of her mouth, and Elizabeth finished "'the little boy.""
• "No matter how old or young, the object is to deceive the parents into thinking that this changeling is actually their child."