key vs KGB, What's the Difference?

Which to use

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

#788
“key” frequency rank: #19,629
“KGB” frequency rank: 20417
confusion score

Side-by-Side Comparison

Feature	key	KGB
Definition	An object designed to open and close a lock.	The Committee for State Security of the Soviet Union (the Soviet security service).

Letter map: key vs KGB

Shared letters muted; letters that set key and KGB apart highlighted. Shared run: 1.

3 ch

key

3 ch

KGB

Grammar separator: key vs KGB

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: key is anoun and KGBaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 20417, derived from the frequency rank of both members and their visual similarity.

key is recorded at frequency rank #788, classified as anoun, pronounced /kiː/. KGB is at rank #19,629, 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 20417, this pair ranks #431,222 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of key vs KGB

Shared letters: k. Private to "key": ey. Private to "KGB": bg.

"key" · 3 letters · shape CVV · "KGB" · 3 letters · shape CCC

Frequently Asked Questions

Do "key" and "KGB" mean the same thing in a sentence?

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

Frequency check: "key" vs "KGB" - which ranks higher?

"key" is the more common of the two: it sits at frequency rank #788 in our English list, against #19,629 for "KGB". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "key" and "KGB". Here's where to go from here.

Full dictionary entry for "key" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "KGB" - compare definitions side by side with the headword page. Word entry
This pair ranks #431,222 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"key" and "KGB" also get mixed up with nearby pairs, the highest-scored neighbour is "KGB vs Kop". Nearby pair

Confusion rank #431,222 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.