Sentence:  "She was the Wicked Witch of the East, as I said," answered the little woman. "She has held all the Munchkins in <WSD>bondage</WSD> for many years, making them slave for her night and day. Now they are all set free, and are grateful to you for the favor." 
Meaning of the word marked with <WSD> tags:  The state of being enslaved or the practice of slavery.