periodic

/ˌpɪɹiˈɒdɪk/

//ˌpɪɹiˈɒdɪk// adj

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

"periodic" is a 8-letter English headword indexed on PlainSpell.

The verdict

“periodic” has 11 generated spelling variants in the English index at frequency #12,473. The variants make it a useful spelling check.

#12,473
frequency rank, English
4,417
“P” headwords
11
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Relative to a period or periods.

Corpus desk

Index EN-periodic · periodic · English

periodic · rank #12,473 · 11 variants · 2 confusables

  • FREQ-MID #12,473
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 11 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH peacefully

Nearest frequency peer: peacefully (-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.

Rank peers near misspelling magnet “periodic”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “periodic” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

periodic vs periodical
80% similar
periodic vs period
75% similar

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

Key facts for periodic
PropertyValue
Headwordperiodic
LanguageEnglish
Part of speechAdjective
IPA/ˌpɪɹiˈɒdɪk/
Letters8
Frequency rank#12,473
Misspellings tracked11
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “periodic”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).periodiclands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “peacefully” (#12,472), “Philly” (#12,474), “paradox” (#12,471). Among 4,417 “P” headwords, “periodic” is #12,473. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around periodic (IPA /ˌpɪɹiˈɒdɪk/), anadjective. Corpus frequency is #12,473 among 4,417 “P” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for periodic, with forms such as "epriodic", "peirodic", and "peridoic". 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 2 confusable-pair relationships, "periodical", "period", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From French périodique, from Medieval Latin periodicus (“cyclical”), from Latin periodus (“complete sentence, period, circuit”), from Ancient Greek περίοδος (períodos, “cycle, period of time”). By surface analysis, period + -ic. The correct English form is periodic, spelled P-E-R-I-O-D-I-C.

Definition

  1. 1
    Relative to a period or periods.
  2. 2
    Having repeated cycles.
  3. 3
    Occurring at regular intervals.
  4. 4
    Periodical.
  5. 5
    Pertaining to the revolution of a celestial object in its orbit.
  6. 6
    For which any return to it must occur in multiples of k time steps, for some k>1.
  7. 7
    Having a structure characterized by periodic sentences.

Recorded use

Wiktionary examples

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

  1. There was some laughter, and Roddle was left free to expand his ideas on the periodic visits of cowboys to the town. “Mason Rickets, he had ten big punkins a-sittin' in front of his store, an' them fellers from the Upside-down-F ranch shot 'em up […].”
  2. That last problem did intrude on Hazzard’s roamings, and when she refers to the living city it is with periodic references to thefts of cars and wallets, with a warning not to carry anything “snatchable” by the thieves on motorcycles who whiz through the streets.

Etymology

From French périodique, from Medieval Latin periodicus (“cyclical”), from Latin periodus (“complete sentence, period, circuit”), from Ancient Greek περίοδος (períodos, “cycle, period of time”). By surface analysis, period + -ic.

Synonyms

cycliccyclicalperiodicperiodicalregular

Antonyms

acyclicalirregularnoncyclicnoncyclicalunperiodic

This word in other languages

periódico(Español)périodique(Français)periodisch(Deutsch)periódico(Português)

Common misspellings

Also misspelled as:

  • epriodic
  • peirodic
  • peridoic
  • periodci
  • perioddic
  • periodicc
  • perioidc
  • peroidic
  • perriodic
  • pperiodic
  • preiodic

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of periodic - 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.

epriodic2peirodic2peridoic2periodci2perioddic1periodicc1perioidc2peroidic2
Edit distance from "periodic"

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 "periodic"?
"periodic" is spelled P-E-R-I-O-D-I-C. The IPA pronunciation is /ˌpɪɹiˈɒdɪk/.
What does "periodic" mean?
As an adjective, "periodic" means: Relative to a period or periods.
What words are commonly confused with "periodic"?
"periodic" is commonly confused with "periodical", "period". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "periodic"?
The IPA (International Phonetic Alphabet) transcription for "periodic" is /ˌpɪɹiˈɒdɪk/. 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 "periodic"?
From French périodique, from Medieval Latin periodicus (“cyclical”), from Latin periodus (“complete sentence, period, circuit”), from Ancient Greek περίοδος (períodos, “cycle, period of time”). By surface analysis, period + -ic. 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 "periodic", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

mushroom#12,464maximize#12,461LinkedIn#12,458saunders#12,495

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

portray11 variantsPradesh11 variantsleftist11 variantsscaling11 variants

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

Source: FrequencyWords open word-frequency list