scrub

The word “scrub” means to clean something by rubbing hard, often with a brush. In plain terms, most often means to clean by hard rubbing, or to cancel something; also low brush vegetation, or (plural) medical uniforms.

“Scrub” is pronounced skruhb (/skɹʌb/ in IPA).

Here is “scrub” used in a sentence: “She scrubbed the pots until they shone.”

Depending on how it is used, “scrub” can be a verb and a noun.

The word “scrub” comes from Middle English. A Late Middle English variant of "shrub," originally describing a stunted tree — the cleaning sense developed separately, likely from the rough scrubbing brush used for scouring.

“Scrub” is an uncommon word in modern English.

“Scrub” has 5 distinct senses listed in this dictionary. The most common is: to clean something by rubbing hard, often with a brush.

As a noun, scrub refers to low, dense vegetation or brush, often growing on poor soil, while "shrub" refers to a single woody plant smaller than a tree. Scrub describes a type of landscape made up of many such low plants, whereas shrub names an individual plant.

In informal gaming and sports slang, a "scrub" is an inexperienced or unskilled player, often used somewhat dismissively. This sense is unrelated to the cleaning or vegetation meanings of the word.

To scrub an event means to cancel a planned task or launch, a usage that originated in contexts like rocket launches and has spread to general planning. It differs from the cleaning sense, which means to rub something hard to remove dirt.

Medical staff, especially in surgery, wear short-sleeved uniforms called scrubs, a name tied to the practice of scrubbing in—thoroughly washing and disinfecting—before entering a sterile environment. The garment name reflects this hygiene-focused routine.