principle

/ˈpɹɪn.sɪ.pəl/

//ˈpɹɪn.sɪ.pəl// noun

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

"principle" is a 9-letter English headword indexed on PlainSpell.

The verdict

“principle” is a regularly-used English word, ranked #4,037 in English word frequency and used as a noun.

#4,037
frequency rank, English
9
letters
14
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A fundamental assumption or guiding belief.

Visual similarity to commonly confused words

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

principle vs principles
90% similar
principle vs principled
90% similar
principle vs principal
78% similar

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

Key facts for principle
PropertyValue
Headwordprinciple
LanguageEnglish
Part of speechNoun
IPA/ˈpɹɪn.sɪ.pəl/
Letters9
Frequency rank#4,037
Misspellings tracked14
Confusable pairs3
SourceWiktionary (kaikki.org)

Where “principle” 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). principle 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 principle is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈpɹɪn.sɪ.pəl/. Corpus data places it at rank #4,037 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 10 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 14 likely wrong-spelling variants for principle, with forms such as "pirnciple", "pprinciple", and "pricniple". 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 3 confusable-pair relationships, "principles", "principled", "principal", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English principle, from Old French principe, from Latin prīncipium (“beginning, foundation”), from prīnceps (“first”). By surface analysis, prīmus (“first”) + -ceps (“catcher”); the former ultimately from Proto-Indo-European *preh₂- (“before”); … The correct English form is principle, spelled P-R-I-N-C-I-P-L-E.

Definition

  1. 1
    A fundamental assumption or guiding belief.
  2. 2
    A rule used to choose among solutions to a problem.
  3. 3
    Moral rule or aspect.
  4. 4
    A rule or law of nature, or the basic idea on how the laws of nature are applied.
  5. 5
    A fundamental essence, particularly one producing a given quality.
  6. 6
    A fundamental essence, particularly one producing a given quality.
  7. 7
    A source, or origin; that from which anything proceeds; fundamental substance or energy; primordial substance; ultimate element, or cause.
  8. 8
    An original faculty or endowment.
  9. 9
    Misspelling of principal.
  10. 10
    A beginning.

Etymology

From Middle English principle, from Old French principe, from Latin prīncipium (“beginning, foundation”), from prīnceps (“first”). By surface analysis, prīmus (“first”) + -ceps (“catcher”); the former ultimately from Proto-Indo-European *preh₂- (“before”); see also prince.

This word in other languages

principio(Español)principe(Français)Grundsatz(Deutsch)princípio(Português)

Common misspellings

Also misspelled as: pirnciple,pprinciple,pricniple,princciple,princilpe,principel,principlle,principple,princpile,prinicple,prinnciple,prniciple,prrinciple,rpinciple

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of principle - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

pirnciple2pprinciple1pricniple2princciple1princilpe2principel2principlle1principple1
Edit distance from "principle"

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 "principle"?
"principle" is spelled P-R-I-N-C-I-P-L-E. The IPA pronunciation is /ˈpɹɪn.sɪ.pəl/.
What does "principle" mean?
As a noun, "principle" means: A fundamental assumption or guiding belief.
What words are commonly confused with "principle"?
"principle" is commonly confused with "principles", "principled", "principal". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "principle"?
The IPA (International Phonetic Alphabet) transcription for "principle" is /ˈpɹɪn.sɪ.pəl/. 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 "principle"?
From Middle English principle, from Old French principe, from Latin prīncipium (“beginning, foundation”), from prīnceps (“first”). By surface analysis, prīmus (“first”) + -ceps (“catcher”); the former ultimately from Proto-Indo-European *preh₂- (“... 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 “principle”

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

  • The one correct English spelling is P-R-I-N-C-I-P-L-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈpɹɪn.sɪ.pəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “principles” - see the side-by-side comparison. principle vs principles
  • 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