drainage basin

noun

"drainage-basin" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A topographic region in which all water drains to a common outlet; a watershed.

Key facts for drainage basin
PropertyValue
Headworddrainage basin
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “drainage basin” sits in English frequency

drainage basin 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

drainage basin is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A topographic region in which all water drains to a common outlet; a watershed.".

The misspelling generator found no plausible variants for drainage basin, since its letter sequence doesn't invite the usual edit-distance slips. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.

Our source data has no etymology on file for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is drainage basin, spelled D-R-A-I-N-A-G-E- -B-A-S-I-N.

Definition

  1. 1
    A topographic region in which all water drains to a common outlet; a watershed.

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 "drainage basin"?
"drainage basin" is spelled D-R-A-I-N-A-G-E- -B-A-S-I-N.
What does "drainage basin" mean?
As a noun, "drainage basin" means: A topographic region in which all water drains to a common outlet; a watershed.
What language does "drainage basin" come from?
"drainage basin" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “drainage basin”

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

  • The one correct English spelling is D-R-A-I-N-A-G-E- -B-A-S-I-N - 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