concessionvscongestionWhich spelling fits?

Which to use

“concession” and “congestion” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#13,489
“concession” frequency rank
#11,854
“congestion” frequency rank
25343
confusion score

Side-by-Side Comparison

Feature concession congestion
Definition The act of conceding. The hindrance or blockage of the passage of something, for example a fluid, mixture, traffic, people, etc. (due to an excess of this or due to a partial or complete obstruction), resulting in overfilling or overcrowding.

Where the eye mixes concession and congestion

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

10 ch
concession
10 ch
congestion

Look-alike desk: concession vs congestion

A purely visual mix-up. concession (/kənˈsɛʃən/) and congestion (/kənˈd͡ʒɛs.t͡ʃən/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 25343, derived from the frequency rank of both members and their visual similarity.

concession is recorded at frequency rank #13,489, classified as anoun, pronounced /kənˈsɛʃən/. congestion is at rank #11,854, tagged as anoun, pronounced /kənˈd͡ʒɛs.t͡ʃən/.

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 25343, this pair ranks #395,014 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of concession vs congestion

Shared letters: ceinos. Private to "concession": -. Private to "congestion": gt.

"concession" · 10 letters · shape CVCCVCCVVC  ·  "congestion" · 10 letters · shape CVCCVCCVVC

Known mistypes of this pair

  • concessioncconcession · cnocession · cocnession · conccession · concesion · concesison · concessino · concessionn
  • congestionccongestion · cnogestion · cognestion · conegstion · congesiton · congession · congesstion · congestino

Frequently Asked Questions

Can "concession" and "congestion" be used interchangeably?
No. They are said differently (/kənˈsɛʃən/ versus /kənˈd͡ʒɛs.t͡ʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "concession" or "congestion" show up more?
"congestion" is the more common of the two: it sits at frequency rank #11,854 in our English list, against #13,489 for "concession". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "concession" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "congestion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #395,014 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "concession" and "congestion" also get mixed up with nearby pairs, the highest-scored neighbour is "congestion vs congestive". 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 #395,014 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list