KopvsKosWhat's the difference?

Quick tell: Kop is a noun, Kos is a name, so they fill different roles in a sentence.

Which to use

“Kop” is a noun and “Kos” is a name - they look or sound alike but fill different roles in a sentence.

#48,852
“Kop” frequency rank
#27,534
“Kos” frequency rank
76386
confusion score

Side-by-Side Comparison

Feature Kop Kos
Definition A terrace at a football ground, originally for standing spectators, though all-seater stadia have been mandatory for larger UK clubs since 1994. An island of the Dodecanese, Greece.

Letter map: Kop vs Kos

Shared letters muted; letters that set Kop and Kos apart highlighted. Shared run: 2.

3 ch
Kop
3 ch
Kos

Role in the sentence - Kop and Kos

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kop is anoun and Kosaname. On the page they differ by a single letter - p in “Kop” becomes s in “Kos”. Our composite confusion score for this pair is 76386, derived from the frequency rank of both members and their visual similarity.

Kop is recorded at frequency rank #48,852, classified as anoun, pronounced /kɒp/. Kos is at rank #27,534, tagged as aname.

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 76386, this pair ranks #30,270 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Kop vs Kos

Shared letters: ko. Private to "Kop": p. Private to "Kos": s.

"Kop" · 3 letters · shape CVC  ·  "Kos" · 3 letters · shape CVC

Frequently Asked Questions

Do "Kop" and "Kos" mean the same thing in a sentence?
No - they are not even the same part of speech. "Kop" is a noun and "Kos" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "Kop" or "Kos" show up more?
"Kos" is the more common of the two: it sits at frequency rank #27,534 in our English list, against #48,852 for "Kop". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "Kop" and "Kos". Here's where to go from here.

  • Full dictionary entry for "Kop" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Kos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,270 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Kop" and "Kos" also get mixed up with nearby pairs, the highest-scored neighbour is "kno vs Kop". Nearby pair

Confusion rank #30,270 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