filamentsvsfilmentWhat's the difference?

Quick tell: filaments is a noun, filment is a verb, so they fill different roles in a sentence.

Which to use

“filaments” is a noun and “filment” is a verb - they look or sound alike but fill different roles in a sentence.

#35,943
“filaments” frequency rank
#38,297
“filment” frequency rank
74240
confusion score

Side-by-Side Comparison

Feature filaments filment
Definition Pluriel de filament. Troisième personne du pluriel du présent de l’indicatif de filmer.

Where the eye mixes filaments and filment

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. filaments runs 9 letters (CVCVCVCCC) against filment's 7 (CVCCVCC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
filaments
7 ch
filment

Why the eye confuses filaments with filment

These two trip readers on the page rather than in the ear: filaments is \fi.la.mɑ̃\ while filment is \film\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 74240, derived from the frequency rank of both members and their visual similarity.

filaments is recorded at frequency rank #35,943, classified as anoun, pronounced \fi.la.mɑ̃\. filment is at rank #38,297, tagged as averb, pronounced \film\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 74240, this pair ranks #37,761 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of filaments vs filment

Shared letters: efilmnt. Private to "filaments": as. Private to "filment": -.

"filaments" · 9 letters · shape CVCVCVCCC  ·  "filment" · 7 letters · shape CVCCVCC

Known mistypes of this pair

  • filaments ← ffilaments · fialments · filaemnts · filamennts · filamenst · filamentss · filamentts · filametns
  • filment ← ffilment · filemnt · fillment · filmennt · filmentt · filmetn · filmment · filmnet

Frequently Asked Questions

Do "filaments" and "filment" mean the same thing in a sentence?
No - they are not even the same part of speech. "filaments" is a noun and "filment" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "filaments" or "filment"?
"filaments" is the more common of the two: it sits at frequency rank #35,943 in our French list, against #38,297 for "filment". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "filaments" and "filment" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "filaments" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "filment" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #37,761 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "filaments" and "filment" also get mixed up with nearby pairs, the highest-scored neighbour is "filmant vs filment". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #37,761 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list