synonymy

/sɪˈnɒnəmi/

//sɪˈnɒnəmi// noun

By · According to Wiktionary data (CC BY-SA) ·

"synonymy" is a 8-letter English headword indexed on PlainSpell.

The verdict

“synonymy” is uncommon English (frequency #67,875 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#67,875
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A certain degree of similarity between the meaning(s) of several (synonymous) words or phrases. (See Usage notes below.)

Corpus desk

Index EN-synonymy · synonymy · English

synonymy · rank #67,875 · 0 variants · 0 confusables

  • FREQ-RARE #67,875
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH synchronisati…

Nearest frequency peer: synchronisation (-1 rank slots)

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.

Long-tail ranks near “synonymy”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “synonymy” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for synonymy
PropertyValue
Headwordsynonymy
LanguageEnglish
Part of speechNoun
IPA/sɪˈnɒnəmi/
Letters8
Frequency rank#67,875
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “synonymy” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).synonymyfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “synchronisation” (#67,874), “SYRIZA” (#67,876), “swathe” (#67,872). Among 6,566 “S” headwords, “synonymy” is #67,875. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

synonymy is uncommon English at frequency #67,875 among 6,566 “S” headwords, classed as anoun, transcribed /sɪˈnɒnəmi/. Rarity is why readers land here mid-draft. 7 senses are on record.

The misspelling generator found no plausible variants for synonymy, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From French synonymie and its etymon Late Latin synōnymia, from Ancient Greek συνωνυμία (sunōnumía), from συνώνυμος (sunṓnumos, “of like name”) + -ία (-ía, abstract noun suffix). By surface analysis, synonym + -y or syn- + -onymy. Doublet of synonymia. The correct English form is synonymy, spelled S-Y-N-O-N-Y-M-Y.

Definition

  1. 1
    A certain degree of similarity between the meaning(s) of several (synonymous) words or phrases. (See Usage notes below.)
  2. 2
    A list or collection of synonyms, often compared and contrasted.
  3. 3
    The use of synonyms to clarify or explain one's meaning.
  4. 4
    The study of synonyms.
  5. 5
    A system of synonyms.
  6. 6
    The state of not being the name to be used, of being a synonym.
  7. 7
    A group or list of synonyms.

Recorded use

Wiktionary examples

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

  1. sink into synonymy
  2. In 1924 this name was reduced to synonymy.

Etymology

From French synonymie and its etymon Late Latin synōnymia, from Ancient Greek συνωνυμία (sunōnumía), from συνώνυμος (sunṓnumos, “of like name”) + -ία (-ía, abstract noun suffix). By surface analysis, synonym + -y or syn- + -onymy. Doublet of synonymia.

This word in other languages

synonymie(Français)Synonymie(Deutsch)sinonímia(Português)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "synonymy"?
"synonymy" is spelled S-Y-N-O-N-Y-M-Y. The IPA pronunciation is /sɪˈnɒnəmi/.
What does "synonymy" mean?
As a noun, "synonymy" means: A certain degree of similarity between the meaning(s) of several (synonymous) words or phrases. (See Usage notes below.)
How do you pronounce "synonymy"?
The IPA (International Phonetic Alphabet) transcription for "synonymy" is /sɪˈnɒnəmi/. 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 "synonymy"?
From French synonymie and its etymon Late Latin synōnymia, from Ancient Greek συνωνυμία (sunōnumía), from συνώνυμος (sunṓnumos, “of like name”) + -ία (-ía, abstract noun suffix). By surface analysis, synonym + -y or syn- + -onymy. Doublet of synon... 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "synonymy", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

superfan#67,870Stepford#67,861steerage#67,860Squamish#67,855

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

Source: FrequencyWords open word-frequency list