multiplexvsmultiplierWhat's the difference?

Quick tell: multiplex is a adjective, multiplier is a verb, so they fill different roles in a sentence.

Which to use

“multiplex” is an adjective and “multiplier” is a verb - they look or sound alike but fill different roles in a sentence.

#45,746
“multiplex” frequency rank
#9,353
“multiplier” frequency rank
55099
confusion score

Side-by-Side Comparison

Feature multiplex multiplier
Definition Qui permet le passage simultané de multiples signaux sur un même canal, par exemple par un même câble. Augmenter le nombre, la quantité des êtres ou des choses.

Where the eye mixes multiplex and multiplier

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

9 ch
multiplex
10 ch
multiplier

Look-alike desk: multiplex vs multiplier

These two trip readers on the page rather than in the ear: multiplex is \myl.ti.plɛks\ while multiplier is \myl.ti.pli.je\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 55099, derived from the frequency rank of both members and their visual similarity.

multiplex is recorded at frequency rank #45,746, classified as anadj, pronounced \myl.ti.plɛks\. multiplier is at rank #9,353, tagged as averb, pronounced \myl.ti.pli.je\.

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 55099, this pair ranks #129,687 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of multiplex vs multiplier

Shared letters: eilmptu. Private to "multiplex": x. Private to "multiplier": r.

"multiplex" · 9 letters · shape CVCCVCCVC  ·  "multiplier" · 10 letters · shape CVCCVCCVVC

Known mistypes of this pair

  • multiplexmlutiplex · mmultiplex · mulitplex · mulltiplex · multilpex · multipelx · multiplexx · multipllex
  • multipliermlutiplier · mmultiplier · mulitplier · mulltiplier · multilpier · multipiler · multipleir · multiplierr

Frequently Asked Questions

Can "multiplex" and "multiplier" be used interchangeably?
No - they are not even the same part of speech. "multiplex" is an adjective and "multiplier" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "multiplex" or "multiplier" show up more?
"multiplier" is the more common of the two: it sits at frequency rank #9,353 in our French list, against #45,746 for "multiplex". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "multiplex" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "multiplier" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #129,687 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "multiplex" and "multiplier" also get mixed up with nearby pairs, the highest-scored neighbour is "multiplex vs multipliée". 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 #129,687 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