reformulation

noun

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

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

The verdict

“reformulation” is uncommon English (frequency #78,999 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#78,999
frequency rank, English
21,470
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The act of formulating anew.

Key facts for reformulation
PropertyValue
Headwordreformulation
LanguageEnglish
Part of speechNoun
Letters13
Frequency rank#78,999
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “reformulation” 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). reformulation 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

reformulation is uncommon English at frequency #78,999 among 21,470 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for reformulation in our index, a sign its spelling follows regular English conventions. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From re- + formulation. The correct English form is reformulation, spelled R-E-F-O-R-M-U-L-A-T-I-O-N.

Definition

  1. 1
    The act of formulating anew.
  2. 2
    A new formulation.

Etymology

From re- + formulation.

This word in other languages

reformulation(Français)

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 "reformulation"?
"reformulation" is spelled R-E-F-O-R-M-U-L-A-T-I-O-N.
What does "reformulation" mean?
As a noun, "reformulation" means: The act of formulating anew.
What is the origin of the word "reformulation"?
From re- + formulation. 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 “reformulation”

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

  • The one correct English spelling is R-E-F-O-R-M-U-L-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