Stealth (noun)

1. The action of moving carefully and secretly to avoid being detected.
2. The ability to move or operate in this way.

Origin:

Late middle english: from old french estelte, from a germanic root meaning "hide", related to steal.

Examples:

1. He moved with stealth through the forest.
2. The stealth technology used in the plane makes it almost invisible to radar.
3. The stealth bomber is designed to avoid radar detection.
4. He had to use stealth to avoid the guards.
5. The thief used stealth to break into the house.