fissile

/ˈfɪsˌaɪ.əl/

//ˈfɪsˌaɪ.əl// adj

"fissile" is a 7-letter English headword indexed on PlainSpell.

The verdict

“fissile” has 8 generated spelling variants in the English index at frequency #49,335. The variants make it a useful spelling check.

#49,335
frequency rank, English
2,507
“F” headwords
8
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Able to be split.

Corpus desk

Index EN-fissile · fissile · English

fissile · rank #49,335 · 8 variants · 3 confusables

  • FREQ-MID #49,335
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 3 pairs
  • VAR-MID 8 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH Flagg

Nearest frequency peer: Flagg (+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 “fissile”

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

corpus weight

What this shows “fissile” 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).

fissile vs fossil
71% similar
fissile vs fission
71% similar
fissile vs fissure
71% similar

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

Key facts for fissile
PropertyValue
Headwordfissile
LanguageEnglish
Part of speechAdjective
IPA/ˈfɪsˌaɪ.əl/
Letters7
Frequency rank#49,335
Misspellings tracked8
Confusable pairs3
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “fissile”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).fissilelands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “Flagg” (#49,336), “filigree” (#49,332), “Fleischer” (#49,338). Among 2,507 “F” headwords, “fissile” is #49,335. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around fissile (IPA /ˈfɪsˌaɪ.əl/), anadjective. Corpus frequency is #49,335 among 2,507 “F” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for fissile, with forms such as "ffissile", "fisile", and "fisisle". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 3 confusable-pair relationships, "fossil", "fission", "fissure", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Latin fissilis. The correct English form is fissile, spelled F-I-S-S-I-L-E.

Definition

  1. 1
    Able to be split.
  2. 2
    Easily split along a grain.
  3. 3
    Capable of sustaining a nuclear fission chain reaction.

Recorded use

Wiktionary examples

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

  1. This Cryſtal is a pellucid fiſſile Stone, clear as Water or Cryſtal of the Rock, and without Colour; enduring a red Heat without loſing its tranſparency, and in a very ſtrong Heat calcining without Fuſion.
  2. North Korea may soon have access to regular amounts of fissile material if it doesn’t already and could be preparing Punggye-ri for a number of nuclear tests if the above analysis is correct.

Etymology

From Latin fissilis.

This word in other languages

Common misspellings

Also misspelled as:

  • ffissile
  • fisile
  • fisisle
  • fissiel
  • fissille
  • fisslie
  • fsisile
  • ifssile

Misspelling Pattern Breakdown

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

ffissile1fisile1fisisle2fissiel2fissille1fisslie2fsisile2ifssile2
Edit distance from "fissile"

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 "fissile"?
"fissile" is spelled F-I-S-S-I-L-E. The IPA pronunciation is /ˈfɪsˌaɪ.əl/.
What does "fissile" mean?
As an adjective, "fissile" means: Able to be split.
What words are commonly confused with "fissile"?
"fissile" is commonly confused with "fossil", "fission", "fissure". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "fissile"?
The IPA (International Phonetic Alphabet) transcription for "fissile" is /ˈfɪsˌaɪ.əl/. 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 "fissile"?
From Latin fissilis. 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 "fissile", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list