brush up

verb

"brush-up" is a 7-letter English headword indexed on PlainSpell.

The verdict

“brush up” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To paint, or make clean or bright with a brush.

Corpus desk

Index EN-brush-up · brush up · English

brush up · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "B" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for brush up
PropertyValue
Headwordbrush up
LanguageEnglish
Part of speechVerb
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “brush up” in English

brush upfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

brush up is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 3 senses are on record.

brush up has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This headword's origin isn't recorded in our source data, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is brush up, spelled B-R-U-S-H- -U-P.

Definition

  1. 1
    To paint, or make clean or bright with a brush.
  2. 2
    To review; to improve an existing but rusty or underdeveloped skill.
  3. 3
    To beat up, annoy or insult (someone).

Recorded use

Wiktionary examples

These source excerpts show how brush up appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. April 10, 1706, Alexander Pope, letter to William Wycherley You have commissioned me to paint your shop, and I have done my best to brush you up like your neighbours.
  2. I'll need to brush up (on) my Greek before my trip to Athens.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "brush up"?
"brush up" is spelled B-R-U-S-H- -U-P.
What does "brush up" mean?
As a verb, "brush up" means: To paint, or make clean or bright with a brush.
What language does "brush up" come from?
"brush up" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list