saponification

noun

"saponification" is a 14-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The hydrolysis of an ester under basic conditions to form an alcohol and the salt of the acid.

Corpus desk

Index EN-saponification · saponification · English

saponification · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-7 7 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 saponification
PropertyValue
Headwordsaponification
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “saponification” in English

saponificationranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

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

The misspelling generator found no plausible variants for saponification, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From French saponification, from saponifier (“saponify”). The correct English form is saponification, spelled S-A-P-O-N-I-F-I-C-A-T-I-O-N.

Definition

  1. 1
    The hydrolysis of an ester under basic conditions to form an alcohol and the salt of the acid.
  2. 2
    The reaction of a metallic alkali (base) with a fat or oil to form soap.

Etymology

From French saponification, from saponifier (“saponify”).

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 "saponification"?
"saponification" is spelled S-A-P-O-N-I-F-I-C-A-T-I-O-N.
What does "saponification" mean?
As a noun, "saponification" means: The hydrolysis of an ester under basic conditions to form an alcohol and the salt of the acid.
What is the origin of the word "saponification"?
From French saponification, from saponifier (“saponify”). 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