rear up

verb

"rear-up" is a 6-letter English headword indexed on PlainSpell.

The verdict

“rear 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
7
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To rise up, especially an animal like a horse rising up on its rear legs.

Key facts for rear up
PropertyValue
Headwordrear up
LanguageEnglish
Part of speechVerb
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “rear up” sits in English frequency

rear up falls 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

rear up is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "To rise up, especially an animal like a horse rising up on its rear legs.".

No generated misspelling entries exist for rear up in our index, suggesting the orthography follows predictable English patterns. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From rear + up. The correct English form is rear up, spelled R-E-A-R- -U-P.

Definition

  1. 1
    To rise up, especially an animal like a horse rising up on its rear legs.

Etymology

From rear + up.

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 "rear up"?
"rear up" is spelled R-E-A-R- -U-P.
What does "rear up" mean?
As a verb, "rear up" means: To rise up, especially an animal like a horse rising up on its rear legs.
What is the origin of the word "rear up"?
From rear + up. See the full etymology section above for more details.
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.

Using “rear up”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is R-E-A-R- -U-P - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list