ken vs ku, What's the Difference?

Which to use

“ken” is a noun and “ku” is a pronoun - they look or sound alike but fill different roles in a sentence.

#11,440
“ken” frequency rank: #29,714
“ku” frequency rank: 41154
confusion score

Side-by-Side Comparison

Feature	ken	ku
Definition	Savia, jugo.	Ese, esa. Pronombre y adjetivo demostrativo usado para una entidad ausente.

Where the spellings diverge

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

3 ch

ken

2 ch

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ken is [kʰen] /ken/ while ku is [ˈku]. 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 pronoun), which is usually the fastest check. Our composite confusion score for this pair is 41154, derived from the frequency rank of both members and their visual similarity.

ken is recorded at frequency rank #11,440, classified as anoun, pronounced [kʰen] /ken/. ku is at rank #29,714, tagged as apron, pronounced [ˈku].

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 41154, this pair ranks #155,232 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ken vs ku

Shared letters: k. Private to "ken": en. Private to "ku": u.

"ken" · 3 letters · shape CVC · "ku" · 2 letters · shape CV

Frequency comparison

ken#11,440

ku#29,714

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ken" and "ku" be used interchangeably?

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

Which is more common, "ken" or "ku"?

"ken" is the more common of the two: it sits at frequency rank #11,440 in our Spanish list, against #29,714 for "ku". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering ken vs ku

The fastest way to pick the right one every time.

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