regularization

noun

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

"regularization" is a 14-letter English headword indexed on PlainSpell.

The verdict

“regularization” is uncommon English (frequency #70,201 among 3,094 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#70,201
frequency rank, English
3,094
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act of making regular, of regularizing.

Corpus desk

Index EN-regularization · regularization · English

regularization · rank #70,201 · 0 variants · 0 confusables

  • FREQ-RARE #70,201
  • LEN-MEGA 14 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH refurb

Nearest frequency peer: refurb (-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 “regularization”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for regularization
PropertyValue
Headwordregularization
LanguageEnglish
Part of speechNoun
Letters14
Frequency rank#70,201
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “regularization” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).regularizationfalls 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: “refurb” (#70,200), “reinterpret” (#70,202), “redouble” (#70,199). Among 3,094 “R” headwords, “regularization” is #70,201. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

regularization is uncommon English at frequency #70,201 among 3,094 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for regularization in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From regular + -ization. The correct English form is regularization, spelled R-E-G-U-L-A-R-I-Z-A-T-I-O-N.

Definition

  1. 1
    The act of making regular, of regularizing.
  2. 2
    a process that simplifies results, often used to obtain results for ill-posed problems or to prevent overfitting.

Recorded use

Wiktionary examples

These source excerpts show how regularization appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The history of the regularization of rivers, both in Russia and in Western Europe, hardly shows us anything but failures.
  2. A large regularization parameter may over-smoothen the solution, while a small regularization parameter may lose the ability to stabilize the solution.

Etymology

From regular + -ization.

This word in other languages

regularização(Português)

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 "regularization"?
"regularization" is spelled R-E-G-U-L-A-R-I-Z-A-T-I-O-N.
What does "regularization" mean?
As a noun, "regularization" means: The act of making regular, of regularizing.
What is the origin of the word "regularization"?
From regular + -ization. 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 "regularization", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 14 letters (nearest by frequency rank).

Zoroastrianism#70,420cardiothoracic#70,540disambiguation#69,792circumnavigate#69,737

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

Source: FrequencyWords open word-frequency list