serial killer

/ˈsɪəɹɪəl ˌkɪlə/

//ˈsɪəɹɪəl ˌkɪlə// noun

"serial-killer" is a 12-letter English headword indexed on PlainSpell.

The verdict

“serial killer” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A person who commits multiple (more than two) murders, especially similar ones with no obvious motive over a period of time with a "cooling-off" period between each murder.

Corpus desk

Index EN-serial-killer · serial killer · English

serial killer · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for serial killer
PropertyValue
Headwordserial killer
LanguageEnglish
Part of speechNoun
IPA/ˈsɪəɹɪəl ˌkɪlə/
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “serial killer” in English

serial killersits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

serial killer is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈsɪəɹɪəl ˌkɪlə/. Rarity is why readers land here mid-draft. Gloss: "A person who commits multiple (more than two) murders, especially similar ones with no obvious motive over a period of time with a "cooling-off" period between each murder.".

No generated misspelling entries exist for serial killer in our index, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This headword's origin isn't recorded in our source data, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is serial killer, spelled S-E-R-I-A-L- -K-I-L-L-E-R.

Definition

  1. 1
    A person who commits multiple (more than two) murders, especially similar ones with no obvious motive over a period of time with a "cooling-off" period between each murder.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "serial killer"?
"serial killer" is spelled S-E-R-I-A-L- -K-I-L-L-E-R. The IPA pronunciation is /ˈsɪəɹɪəl ˌkɪlə/.
What does "serial killer" mean?
As a noun, "serial killer" means: A person who commits multiple (more than two) murders, especially similar ones with no obvious motive over a period of time with a "cooling-off" period between each murder.
How do you pronounce "serial killer"?
The IPA (International Phonetic Alphabet) transcription for "serial killer" is /ˈsɪəɹɪəl ˌkɪlə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "serial killer" come from?
"serial killer" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list