To take something without the permission or knowledge of the owner and keep it: Steal may apply to any surreptitious taking of something and differs. If you steal something from someone, you take it away from them without their permission and without intending to return it.
Bison Run School
See examples of steal used. Steal, pilfer, filch, purloin mean to take from another without right or without detection. To take (the property of another or others) without permission or right, especially secretly or by force.
