killervskinderWhat's the difference?

Quick tell: killer is a noun, kinder is an adjective, so they fill different roles in a sentence.

Which to use

“killer” is a noun and “kinder” is an adjective - they look or sound alike but fill different roles in a sentence.

#3,176
“killer” frequency rank
#19,630
“kinder” frequency rank
22806
confusion score

Side-by-Side Comparison

Feature killer kinder
Definition One who or that which kills. comparative form of kind: more kind

Where the eye mixes killer and kinder

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
killer
6 ch
kinder

Visual trap between killer and kinder

These two trip readers on the page rather than in the ear: killer is /ˈkɪlə(ɹ)/ while kinder is /ˈkaɪndə/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 22806, derived from the frequency rank of both members and their visual similarity.

killer is recorded at frequency rank #3,176, classified as anoun, pronounced /ˈkɪlə(ɹ)/. kinder is at rank #19,630, tagged as anadj, pronounced /ˈkaɪndə/.

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 22806, this pair ranks #413,875 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of killer vs kinder

Shared letters: eikr. Private to "killer": l. Private to "kinder": dn.

"killer" · 6 letters · shape CVCCVC  ·  "kinder" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • killerikller · kilelr · kiler · killerr · killre · kkiller · kliler
  • kinderiknder · kidner · kindder · kinderr · kindre · kinedr · kinnder · kkinder

Frequently Asked Questions

Is swapping "killer" for "kinder" ever safe?
No - they are not even the same part of speech. "killer" is a noun and "kinder" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "killer" or "kinder" show up more?
"killer" is the more common of the two: it sits at frequency rank #3,176 in our English list, against #19,630 for "kinder". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "killer" and "kinder" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "killer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "kinder" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #413,875 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "killer" and "kinder" also get mixed up with nearby pairs, the highest-scored neighbour is "kidder vs kinder". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #413,875 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