scrub

¹ American  

[skruhb] / skrʌb /

verb (used with object)

scrubbed, scrubbing

1. to rub hard with a brush, cloth, etc., or against a rough surface in washing.

2. to subject to friction; rub.

3. to remove (dirt, grime, etc.) from something by hard rubbing while washing.

4. Chemistry. to remove (impurities or undesirable components) from a gas by chemical means, as sulfur dioxide from smokestack gas or carbon dioxide from exhaled air in life-support packs.

5. to cancel or postpone (a space flight or part of a mission).

   Ground control scrubbed the spacewalk.

6. Slang. to do away with; cancel.

   Scrub your vacation plans—there's work to do!

7. Computers.

   1. to perform routine maintenance on (data) in memory or storage with scans that detect and correct data corruption.

      The system is automated to scrub and archive all active records in the database.

   2. to permanently erase (a hard drive, server, etc.), usually by writing over space where data had been stored and was later deleted, so that deleted data cannot be recovered.

      Scrub your computer’s hard drive before you sell or donate it.

   3. to delete (negative or damaging online content relating to someone or something) so as to erase it from public record or social media: Before applying for jobs, I scrubbed a bunch of posts from my hard-partying past.

      The marketing team scrubbed the disgraced celebrity spokesperson from their website within hours of the scandal.

      Before applying for jobs, I scrubbed a bunch of posts from my hard-partying past.

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verb (used without object)

scrubbed, scrubbing

1. to cleanse something by hard rubbing.

2. Digital Technology. to fast-forward or rewind in an audio or video file by dragging the progress marker forward or backward across the timeline bar.

   Scrub forward through the pregame and start playback from the kickoff.

noun

1. an act or instance of scrubbing.

2. a canceled or postponed space flight, launching, scheduled part of a space mission, etc.

3. something, as a cosmetic preparation, used for scrubbing.

4. scrubs, a uniform, durably designed for frequent washing and sanitizing, usually consisting of pants and a loose-fitting top, worn by doctors, nurses, and other medical staff, especially during surgery: nursing scrubs.

   surgical scrubs;

   nursing scrubs.

verb phrase

1. scrub in / up to cleanse one's hands and arms as a preparation to performing or assisting in surgery.

scrub ² American  

[skruhb] / skrʌb /

noun

1. low trees or shrubs collectively.

2. a large area covered with low trees and shrubs, as the Australian bush.

3. a domestic animal of mixed or inferior breeding; mongrel.

4. a small or insignificant person.

5. anything undersized or inferior.

6. Sports. a player not belonging to the varsity or regular team; a player who is not first-string.

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adjective

1. small, undersized, or stunted.

2. inferior or insignificant.

3. abounding in or covered with low trees and shrubs.

   They rode through scrub country.

scrub ¹ British  

/ skrʌb /

noun

1. 1. vegetation consisting of stunted trees, bushes, and other plants growing in an arid area

   2. ( as modifier )

      scrub vegetation

2. an area of arid land covered with such vegetation

3. 1. an animal of inferior breeding or condition

   2. ( as modifier )

      a scrub bull

4. a small or insignificant person

5. anything stunted or inferior

6. sport a player not in the first team

7. informal a remote place, esp one where contact with people can be avoided

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adjective

1. small, stunted, or inferior

2. sport

   1. (of a player) not in the first team

   2. (of a team) composed of such players

   3. (of a contest) between scratch or incomplete teams

scrub ² British  

/ skrʌb /

verb

1. to rub (a surface) hard, with or as if with a brush, soap, and water, in order to clean it

2. to remove (dirt), esp by rubbing with a brush and water

3. (of a surgeon) to wash the hands and arms thoroughly before operating

4. (tr) to purify (a vapour or gas) by removing impurities

5. informal (tr) to delete or cancel

6. slang (intr) horse racing (of jockeys) to urge a horse forwards by moving the arms and whip rhythmically forwards and backwards alongside its neck

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noun

1. the act of or an instance of scrubbing

Usage

What else does scrub mean? Scrub is slang for someone who is just plain bad at something—a no-talent hack. This could be in sports, video games, or thanks to TLC's hit song, relationships.

Other Word Forms

• nonscrubbable
  adjective
• scrubbable
  adjective

Etymology

Origin of scrub¹

First recorded in 1300–50; of uncertain origin; Middle English verb scrobben, shrubben, borrowed from or related to Middle Dutch, Middle Low German schrobben “to scrub, scrape”

Origin of scrub²

First recorded in 1350–1400; Middle English shrub(be), shrob(be), Old English scrybb; see shrub ¹

Explanation

When you scrub something, you wash it forcefully. You might scrub your dirty bathtub with a brush and some bleach, for example. When you scrub your floor, you use elbow grease — in other words, you work hard to get the floor clean. You might need to scrub your fingernails after a morning working on your car's engine, rubbing with a nail brush to get the grease off. Word experts think that scrub comes from the Middle Low German word schrubben, which also means "to scrub."

Example Sentences

“Hamlin,” read a sign, and for miles in both directions were furrows and beds with only dirt or scrub brush or dead trees.

From Slate • Apr. 20, 2026

If you have ever used a "magic eraser" sponge to scrub away scuffs on white shoes or crayon marks on a wall, you have seen how powerful these cleaners can be.

From Science Daily • Apr. 18, 2026

Clouds of soap bubbles and cascading buckets of water follow, along with a coffee scrub and deeply moisturizing mask before a short sauna session to let everything absorb.

From Salon • Mar. 7, 2026

Field voles, hedgehogs and other ground‑nesting species rely on dense vegetation, leaf piles and scrub for shelter during the colder months.

From BBC • Mar. 1, 2026

I scrub while she sweeps, from one end to the other, and she does a good job with the broom.

From "The Light in Hidden Places" by Sharon Cameron

Related Words

• brush
• cleanse
• mop
• rub
• scour
• wash