A straggly, stunted tree or bush; small bushes and trees: Elmer and Brad could see the chipmunk hiding in the scrub farther away from the scrubs in the woods.

1. To rub something hard with a rough object or substance and often with soap in order to clean it: The mother had to scrub and scrub the floor until it was clean.
2. To have rubbed something hard with a rough object or substance and often with soap in order to clean it: After Janet had scrubbed the floor it shined brightly!

The procedure of having rubbed something very hard to get it clean. The pan had a good scrub and is now clean and ready to be put away.

To cancel or to abandon; to have dropped what was anticipated: Because of the high cost, the family had to scrub any plans for going away on a vacation.

The university had to scrub the football game because of the bad weather.

On February 7, 2010, NASA scrubbed the launch of the space shuttle "Endeavor" to the International Space Station (ISS) from the Kennedy Space Center in Florida because the low clouds that moved in would obscure, or make it impossible to see, the "Endeavor" as it took off.