regula

noun

"regula" is a 6-letter English headword indexed on PlainSpell.

The verdict

“regula” is uncommon English (frequency #72,706 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#72,706
frequency rank, English
21,470
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A book of rules for a religious establishment.

Key facts for regula
PropertyValue
Headwordregula
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#72,706
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “regula” 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). regula 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

regula is uncommon English at frequency #72,706 among 21,470 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for regula, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: Learned borrowing from Latin rēgula (“rule”). Doublet of rail, regal, rigol, and rule. The correct English form is regula, spelled R-E-G-U-L-A.

Definition

  1. 1
    A book of rules for a religious establishment.
  2. 2
    One of the bands under a Doric triglyph or between the canals of the triglyphs.

Etymology

Learned borrowing from Latin rēgula (“rule”). Doublet of rail, regal, rigol, and rule.

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 "regula"?
"regula" is spelled R-E-G-U-L-A.
What does "regula" mean?
As a noun, "regula" means: A book of rules for a religious establishment.
What is the origin of the word "regula"?
Learned borrowing from Latin rēgula (“rule”). Doublet of rail, regal, rigol, and rule. 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 “regula”

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

  • The one correct English spelling is R-E-G-U-L-A - 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