trajectoirevstrajectoiresWhat's the difference?

Which to use

“trajectoire” and “trajectoires” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#8,475
“trajectoire” frequency rank
#21,490
“trajectoires” frequency rank
29965
confusion score

Side-by-Side Comparison

Feature trajectoire trajectoires
Definition Ligne décrite par le centre de gravité d’un corps ou d’un système de corps en mouvement. Pluriel de trajectoire.

Where the spellings diverge

Shared letters are muted; the letters that actually set trajectoire and trajectoires apart are highlighted. They share 11 letters in sequence, which is exactly why the eye skips the difference.

11 ch
trajectoire
12 ch
trajectoires

Spelling & Dictionary Insight

This is the hard kind. trajectoire and trajectoires are pronounced identically (\tʁa.ʒɛk.twaʁ\) and both work as anoun. Neither the ear nor the grammar will rescue you; only the meaning does, so the glosses below are the whole decision. They differ by 1 extra letter(s) - “trajectoire” sits inside “trajectoires”. Our composite confusion score for this pair is 29965, derived from the frequency rank of both members and their visual similarity.

trajectoire is recorded at frequency rank #8,475, classified as anoun, pronounced \tʁa.ʒɛk.twaʁ\. trajectoires is at rank #21,490, tagged as anoun, pronounced \tʁa.ʒɛk.twaʁ\.

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 29965, this pair ranks #313,332 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of trajectoire vs trajectoires

Shared letters: aceijort. Private to "trajectoire": -. Private to "trajectoires": s.

"trajectoire" · 11 letters · shape CCVCVCCVVCV  ·  "trajectoires" · 12 letters · shape CCVCVCCVVCVC

Known mistypes of this pair

  • trajectoirertajectoire · tarjectoire · traejctoire · trajcetoire · trajecctoire · trajecotire · trajectiore · trajectoier
  • trajectoiresrtajectoires · tarjectoires · traejctoires · trajcetoires · trajecctoires · trajecotires · trajectiores · trajectoiers

Frequency comparison

trajectoire#8,475
trajectoires#21,490

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "trajectoire" and "trajectoires" be used interchangeably?
No. They are pronounced the same (\tʁa.ʒɛk.twaʁ\), which is exactly why they get swapped in writing, but the dictionary meanings above are different, and pronunciation is no guide here.
Which is more common, "trajectoire" or "trajectoires"?
"trajectoire" is the more common of the two: it sits at frequency rank #8,475 in our French list, against #21,490 for "trajectoires". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering trajectoire vs trajectoires

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “trajectoire” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list