What does brushup mean?
A brushup is a brief period of review or practice aimed at reviving a skill or body of knowledge that has faded through disuse. The term derives from the phrasal verb "to brush up," whose figurative sense of polishing or dusting off something rusty dates from the nineteenth century. As a standalone noun — usually written as one word — it names both the act of refreshing and, loosely, any short refresher course or session that serves this purpose. Someone might give their French a brushup before moving to Paris, or take a brushup course in statistics before graduate study. The word carries informal, practical connotations: a brushup implies competence that merely needs reawakening rather than learning from scratch. It is common in British and American English alike, appearing frequently in education, professional training, and self-improvement contexts. Its friendly, low-stakes tone makes it a natural fit for advertising language and casual advice.
nounA quick review or refresher of knowledge or a skill that has grown rusty; an act of improving something by practicing it briefly again.
- An act of briefly reviewing or refreshing a skill or body of knowledge.
"She gave her Spanish a quick brushup before the trip to Madrid."
"He booked a few driving lessons as a brushup after years without a car."
"The manual serves as a handy brushup for returning employees."
Plural is straightforward but rare; most usage treats a brushup as a single discrete event.
"The training center offers free brushups for alumni each spring."
The noun "brushup" was born from the verb phrase "brush up" — literally sweeping the cobwebs off old skills.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of brushup
"Brushup" originates from the English phrasal verb "brush up," which took its figurative sense of refreshing or polishing a skill in the early nineteenth century, extending the literal idea of brushing dust off a surface. The noun form arose later by conversion from the verb phrase. The underlying word "brush" entered English via Old French "brosse," of uncertain ultimate origin, giving English not only the cleaning tool but also the artist's implement and the noun for thick shrubbery. There are no notable foreign cognates specific to the compound itself; its relatives are simply other English derivatives of "brush."
How brushup is actually used
Informal register; far more common in speech than formal writing. The two-word verb "brush up" is considerably more frequent than the single-word noun in everyday use.
Easily confused with brushup
"Brush up" is the two-word verb form meaning to refresh a skill, while "brushup" as one word functions as a noun referring to the act of reviewing itself.