Chaco

name

By · According to Wiktionary data (CC BY-SA) ·

"chaco" is a 5-letter English headword indexed on PlainSpell.

The verdict

“Chaco” is uncommon English (frequency #53,432 among 5,599 “C” headwords), classed as a proper noun. The kind of spelling people second-guess.

#53,432
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A province in northern Argentina.

Corpus desk

Index EN-chaco · Chaco · English

Chaco · rank #53,432 · 0 variants · 0 confusables

  • FREQ-RARE #53,432
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH CFPB

Nearest frequency peer: CFPB (-1 rank slots)

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.

Long-tail ranks near “Chaco”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “Chaco” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Chaco
PropertyValue
HeadwordChaco
LanguageEnglish
Part of speechProper noun
Letters5
Frequency rank#53,432
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “Chaco” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).Chacofalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “CFPB” (#53,431), “Cayuga” (#53,430), “Chagall” (#53,435). Among 5,599 “C” headwords, “Chaco” is #53,432. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Chaco is uncommon English at frequency #53,432 among 5,599 “C” headwords, classed as aproper noun. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for Chaco, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Borrowed from Spanish Chaco. The correct English form is Chaco, spelled C-H-A-C-O.

Definition

  1. 1
    A province in northern Argentina.
  2. 2
    Swamped area in southern South America

Etymology

Borrowed from Spanish Chaco.

This word in other languages

Chaco(Español)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Chaco"?
"Chaco" is spelled C-H-A-C-O.
What does "Chaco" mean?
As a proper noun, "Chaco" means: A province in northern Argentina.
What is the origin of the word "Chaco"?
Borrowed from Spanish Chaco. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "Chaco", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

canna#53,425COBOL#53,449Bolin#53,410biota#53,404

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

Source: FrequencyWords open word-frequency list