The Hebrew word for steal refers to taking something that belongs to someone else without permission. It implies that such an act is done secretly or deceptively. In 22.1 the word is used for stealing an animal that belongs to someone else, and in 21.16 it is even used for kidnapping, or stealing a man. But since no direct object is stated here, the broader meaning is suggested.
Quoted with permission from Osborn, Noel D. and Hatton, Howard A. A Handbook on Exodus. (UBS Helps for Translators). New York: UBS, 1999. For this and other handbooks for translators see here .