KaiservsKaseyWhat's the difference?

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

Which to use

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

#14,151
“Kaiser” frequency rank
#44,291
“Kasey” frequency rank
58442
confusion score

Side-by-Side Comparison

Feature Kaiser Kasey
Definition An emperor of a German-speaking country, particularly the Holy Roman Empire (962–1806), the Austrian Empire/Austria-Hungary (1806–1918), or the German Empire (1871–1918) — often specifically Wilhelm II. A male given name.

Where the spellings diverge

Shared letters are muted; the letters that actually set Kaiser and Kasey apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

6 ch
Kaiser
5 ch
Kasey

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Kaiser is /ˈkaɪzə(ɹ)/ while Kasey is /ˈkeɪsi/. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 58442, derived from the frequency rank of both members and their visual similarity.

Kaiser is recorded at frequency rank #14,151, classified as anoun, pronounced /ˈkaɪzə(ɹ)/. Kasey is at rank #44,291, tagged as aname, pronounced /ˈkeɪsi/.

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 58442, this pair ranks #112,557 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Kaiser vs Kasey

Shared letters: aeks. Private to "Kaiser": ir. Private to "Kasey": y.

"Kaiser" · 6 letters · shape CVVCVC  ·  "Kasey" · 5 letters · shape CVCVV

Known mistypes of this pair

  • Kaiserakiser · kaiesr · kaiserr · kaisre · kaisser · kasier · kiaser · kkaiser
  • Kaseyaksey · kaesy · kaseyy · kassey · kasye · kkasey · ksaey

Frequency comparison

Kaiser#14,151
Kasey#44,291

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Kaiser" and "Kasey" be used interchangeably?
No - they are not even the same part of speech. "Kaiser" is a noun and "Kasey" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Kaiser" or "Kasey"?
"Kaiser" is the more common of the two: it sits at frequency rank #14,151 in our English list, against #44,291 for "Kasey". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering Kaiser vs Kasey

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “Kaiser”; for a name, it's “Kasey”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “Kaiser” 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