inundation

noun

"inundation" is a 10-letter English headword indexed on PlainSpell.

The verdict

“inundation” is uncommon English (frequency #55,519 among 17,902 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#55,519
frequency rank, English
17,902
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The act of inundating; an overflow; a flood; a rising and spreading of water over grounds.

Key facts for inundation
PropertyValue
Headwordinundation
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#55,519
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “inundation” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). inundation lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

inundation is uncommon English at frequency #55,519 among 17,902 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

We couldn't generate a plausible misspelling set for inundation, since its letter sequence doesn't invite the usual edit-distance slips. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Old French inundacion (“flood”) (French inondation), from Latin inundatio (“flood”), form of inundō (“I flood, overflow”) (English inundate). By surface analysis, inundat(e) + -ion. The correct English form is inundation, spelled I-N-U-N-D-A-T-I-O-N.

Definition

  1. 1
    The act of inundating; an overflow; a flood; a rising and spreading of water over grounds.
  2. 2
    The state of being inundated; flooding.
  3. 3
    An overflowing or superfluous abundance; a flood; a great influx.

Etymology

From Old French inundacion (“flood”) (French inondation), from Latin inundatio (“flood”), form of inundō (“I flood, overflow”) (English inundate). By surface analysis, inundat(e) + -ion.

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); 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 "inundation"?
"inundation" is spelled I-N-U-N-D-A-T-I-O-N.
What does "inundation" mean?
As a noun, "inundation" means: The act of inundating; an overflow; a flood; a rising and spreading of water over grounds.
What is the origin of the word "inundation"?
From Old French inundacion (“flood”) (French inondation), from Latin inundatio (“flood”), form of inundō (“I flood, overflow”) (English inundate). By surface analysis, inundat(e) + -ion. 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 “inundation”

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

  • The one correct English spelling is I-N-U-N-D-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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 FrequencyWords open word-frequency list