Köln vs kos, What's the Difference?

Which to use

“Köln” is a name and “kos” is a verb - they look or sound alike but fill different roles in a sentence.

#704
“Köln” frequency rank: #36,463
“kos” frequency rank: 37167
confusion score

Side-by-Side Comparison

Feature	Köln	kos
Definition	Stadt in Nordrhein-Westfalen, viertgrößte Stadt Deutschlands, gelegen am Rhein	2. Person Singular Imperativ Präsens Aktiv des Verbs kosen

Where the spellings diverge

Shared letters are muted; the letters that actually set Köln and kos apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

4 ch

Köln

3 ch

kos

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Köln is [kœln] while kos is [koːs]. 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 (name vs verb), which is usually the fastest check. Our composite confusion score for this pair is 37167, derived from the frequency rank of both members and their visual similarity.

Köln is recorded at frequency rank #704, classified as aname, pronounced [kœln]. kos is at rank #36,463, tagged as averb, pronounced [koːs].

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 37167, this pair ranks #1,597,134 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Köln vs kos

Shared letters: k. Private to "Köln": lnö. Private to "kos": os.

"Köln" · 4 letters · shape CVCC · "kos" · 3 letters · shape CVC

Frequency comparison

Köln#704

kos#36,463

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Köln" and "kos" be used interchangeably?

No - they are not even the same part of speech. "Köln" is a name and "kos" a verb, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "Köln" or "kos"?

"Köln" is the more common of the two: it sits at frequency rank #704 in our German list, against #36,463 for "kos". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering Köln vs kos

The fastest way to pick the right one every time.

Check the role first: if you need a name, it's “Köln”; for a verb, it's “kos”.
See each word in full, definition, IPA, etymology and its other confusables. Full “Köln” entry
Browse more pairs most likely to be confused. Most confusable