horseweed

noun

"horseweed" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of various flowering plants of the genus Conyza.

Corpus desk

Index EN-horseweed · horseweed · English

horseweed · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" 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 horseweed
PropertyValue
Headwordhorseweed
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “horseweed” in English

horseweedranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

horseweed is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.

We couldn't generate a plausible misspelling set for horseweed, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From horse + weed. The correct English form is horseweed, spelled H-O-R-S-E-W-E-E-D.

Definition

  1. 1
    Any of various flowering plants of the genus Conyza.
  2. 2
    A plant of the species Cichorium intybus
  3. 3
    A plant of the species Ambrosia trifida.
  4. 4
    A plant of the species Erigeron canadensis.

Etymology

From horse + weed.

Synonyms

Belgian endiveblue daisyblue dandelionblue sailorblue weedchicory buttoncoffeeweedcommon chicorycommon succorycornflowerFrench endivegarden endiveItalian dandelionragged sailorsuccorywild bachelor's buttonwild bachelor's-buttonwild chicorywild endivewild succorywitloof

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 "horseweed"?
"horseweed" is spelled H-O-R-S-E-W-E-E-D.
What does "horseweed" mean?
As a noun, "horseweed" means: Any of various flowering plants of the genus Conyza.
What is the origin of the word "horseweed"?
From horse + weed. 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.

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

Source: FrequencyWords open word-frequency list