regularity

/ˌɹɛɡjuˈlæɹəti/

//ˌɹɛɡjuˈlæɹəti// noun

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

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

The verdict

“regularity” is a moderately-common English word, ranked #27,989 in English word frequency and used as a noun.

#27,989
frequency rank, English
10
letters
15
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The condition or quality of being regular

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

regularity vs regularly
80% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for regularity
PropertyValue
Headwordregularity
LanguageEnglish
Part of speechNoun
IPA/ˌɹɛɡjuˈlæɹəti/
Letters10
Frequency rank#27,989
Misspellings tracked15
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “regularity” 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). regularity lands here:

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

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

Spelling & Dictionary Insight

The English entry for regularity is 10 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˌɹɛɡjuˈlæɹəti/. Corpus data places it at rank #27,989 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 15 likely wrong-spelling variants for regularity, with forms such as "ergularity", "reggularity", and "regluarity". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "regularly", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Borrowed from Middle French regularite, from Old French regularite, from Late Latin rēgulāritās, rēgulāritātem, from rēgulāris; see regular. By surface analysis, regular + -ity. The correct English form is regularity, spelled R-E-G-U-L-A-R-I-T-Y.

Definition

  1. 1
    The condition or quality of being regular
  2. 2
    A particular regular occurrence

Etymology

Borrowed from Middle French regularite, from Old French regularite, from Late Latin rēgulāritās, rēgulāritātem, from rēgulāris; see regular. By surface analysis, regular + -ity.

Antonyms

irregularity

This word in other languages

régularité(Français)Regelmäßigkeit(Deutsch)regularidade(Português)

Common misspellings

Also misspelled as: ergularity,reggularity,regluarity,regualrity,regulairty,regularitty,regularityy,regulariyt,regularrity,regulartiy,regullarity,regulraity,reuglarity,rgeularity,rregularity

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of regularity - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ergularity2reggularity1regluarity2regualrity2regulairty2regularitty1regularityy1regulariyt2
Edit distance from "regularity"

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 "regularity"?
"regularity" is spelled R-E-G-U-L-A-R-I-T-Y. The IPA pronunciation is /ˌɹɛɡjuˈlæɹəti/.
What does "regularity" mean?
As a noun, "regularity" means: The condition or quality of being regular
What words are commonly confused with "regularity"?
"regularity" is commonly confused with "regularly". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "regularity"?
The IPA (International Phonetic Alphabet) transcription for "regularity" is /ˌɹɛɡjuˈlæɹəti/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "regularity"?
Borrowed from Middle French regularite, from Old French regularite, from Late Latin rēgulāritās, rēgulāritātem, from rēgulāris; see regular. By surface analysis, regular + -ity. 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 “regularity”

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

  • The one correct English spelling is R-E-G-U-L-A-R-I-T-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌɹɛɡjuˈlæɹəti/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “regularly” - see the side-by-side comparison. regularity vs regularly
  • 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 FrequencyWords open word-frequency list