If you steal something from someone, you take it away from them without their permission and without intending to return it.
He was accused of stealing a small boy's bicycle...
Bridge stole the money from clients' accounts...
If you steal someone else's ideas, you pretend that they are your own.
A writer is suing director Steven Spielberg for allegedly stealing his film idea...
His team solved the engineering problem by stealing an idea from nature.
If someone steals somewhere, they move there quietly, in a secret way.
They can steal away at night and join us...
Leroy stole up the hall to the parlor.
If you describe something as a steal, you mean that it is very good value.
At only £3.50, this champagne is a steal.