onanism

/ˈəʊnəˌnɪzəm/

//ˈəʊnəˌnɪzəm// noun

"onanism" is a 7-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Masturbation.

Corpus desk

Index EN-onanism · onanism · English

onanism · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" 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 onanism
PropertyValue
Headwordonanism
LanguageEnglish
Part of speechNoun
IPA/ˈəʊnəˌnɪzəm/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “onanism” in English

onanismfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

onanism is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈəʊnəˌnɪzəm/. Rarity is why readers land here mid-draft. 2 senses are on record.

The misspelling generator found no plausible variants for onanism, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From Onan + -ism. In the Book of Genesis, Onan, son of Judah, in fulfillment of the laws of levirate marriage was to impregnate his brother Er's widow, Tamar, in order to raise offspring from the union in his brother's name. In order to avoid raising descen… The correct English form is onanism, spelled O-N-A-N-I-S-M.

Definition

  1. 1
    Masturbation.
  2. 2
    Ejaculating outside the vagina during intercourse; (the performing of) coitus interruptus.

Recorded use

Wiktionary examples

These source excerpts show how onanism appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Hypochondriasis, hysteria, chorea, epilepsy, apoplexy, and palsy, constitute part of the list of dire maladies induced or immediately excited, by onanism and immoderate or ill-timed coition. The memory and intellectual faculties, in general, are enfeebled, and there are instances of complete idiocy, brought on by early and continued onanism, and of insani…
  2. This photograph was far superior. A nude woman was sitting on the edge of a desk next to a globe of the world. The suggested onanism with the piece of chalk intrigued Ignatius.

Etymology

From Onan + -ism. In the Book of Genesis, Onan, son of Judah, in fulfillment of the laws of levirate marriage was to impregnate his brother Er's widow, Tamar, in order to raise offspring from the union in his brother's name. In order to avoid raising descendants for his late brother, however, Onan "spilled his semen on the ground when he went in to his brother's wife, so that he would not give offspring to his brother" (Genesis 38:9).

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 "onanism"?
"onanism" is spelled O-N-A-N-I-S-M. The IPA pronunciation is /ˈəʊnəˌnɪzəm/.
What does "onanism" mean?
As a noun, "onanism" means: Masturbation.
How do you pronounce "onanism"?
The IPA (International Phonetic Alphabet) transcription for "onanism" is /ˈəʊnəˌnɪzəm/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "onanism"?
From Onan + -ism. In the Book of Genesis, Onan, son of Judah, in fulfillment of the laws of levirate marriage was to impregnate his brother Er's widow, Tamar, in order to raise offspring from the union in his brother's name. In order to avoid rais... See the full etymology section above for more details.
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