synonymous

/sɪˈnɒnɪməs/

//sɪˈnɒnɪməs// adj

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

"synonymous" is a 10-letter English headword indexed on PlainSpell.

The verdict

“synonymous” has 16 generated spelling variants in the English index at frequency #15,071. The variants make it a useful spelling check.

#15,071
frequency rank, English
6,566
“S” headwords
16
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having a similar (sometimes identical) meaning. (See Usage notes below)

Corpus desk

Index EN-synonymous · synonymous · English

synonymous · rank #15,071 · 16 variants · 0 confusables

  • FREQ-MID #15,071
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 16 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH surname

Nearest frequency peer: surname (-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.

Rank peers near misspelling magnet “synonymous”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “synonymous” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for synonymous
PropertyValue
Headwordsynonymous
LanguageEnglish
Part of speechAdjective
IPA/sɪˈnɒnɪməs/
Letters10
Frequency rank#15,071
Misspellings tracked16
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “synonymous”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).synonymouslands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “surname” (#15,070), “tackling” (#15,072), “suing” (#15,069). Among 6,566 “S” headwords, “synonymous” is #15,071. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around synonymous (IPA /sɪˈnɒnɪməs/), anadjective. Corpus frequency is #15,071 among 6,566 “S” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for synonymous, with forms such as "snyonymous", "ssynonymous", and "synnonymous". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Medieval Latin synōnymus, from Ancient Greek συνώνυμος (sunṓnumos). By surface analysis, synonym + -ous. The correct English form is synonymous, spelled S-Y-N-O-N-Y-M-O-U-S.

Definition

  1. 1
    Having a similar (sometimes identical) meaning. (See Usage notes below)
  2. 2
    Of, or being a synonym.
  3. 3
    Such that both its forms yield the same sequenced protein.

Recorded use

Wiktionary examples

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

  1. He was not far wrong, for nothing strikes me more forcibly than the universal tendency to grumble: conversation and complaint are synonymous terms.
  2. Jews and Israel are not synonymous; nor is support for Palestine synonymous with anti-Semitism; nor is questioning the orthodoxy of the Republican party, which the majority of us do with relish, an insult to Jewry.

Etymology

From Medieval Latin synōnymus, from Ancient Greek συνώνυμος (sunṓnumos). By surface analysis, synonym + -ous.

Synonyms

synonymalsynonymicsynonymicalhomosemoushomosemic

Antonyms

antonymousasynonymousnonsynonymousunsynonymousnonsynonymous

This word in other languages

sinónimo(Español)synonyme(Français)bedeutungsgleich(Deutsch)sinónimo(Português)

Common misspellings

Also misspelled as:

  • snyonymous
  • ssynonymous
  • synnonymous
  • synnoymous
  • synonmyous
  • synonnymous
  • synonymmous
  • synonymosu
  • synonymouss
  • synonymuos
  • synonyomus
  • synonyymous
  • synoynmous
  • syonnymous
  • syynonymous
  • ysnonymous

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of synonymous - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

snyonymous2ssynonymous1synnonymous1synnoymous2synonmyous2synonnymous1synonymmous1synonymosu2
Edit distance from "synonymous"

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 "synonymous"?
"synonymous" is spelled S-Y-N-O-N-Y-M-O-U-S. The IPA pronunciation is /sɪˈnɒnɪməs/.
What does "synonymous" mean?
As an adjective, "synonymous" means: Having a similar (sometimes identical) meaning. (See Usage notes below)
What are common misspellings of "synonymous"?
Common misspellings include "snyonymous", "ssynonymous", "synnonymous", "synnoymous", "synonmyous". The correct spelling is "synonymous".
How do you pronounce "synonymous"?
The IPA (International Phonetic Alphabet) transcription for "synonymous" is /sɪˈnɒnɪməs/. 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 "synonymous"?
From Medieval Latin synōnymus, from Ancient Greek συνώνυμος (sunṓnumos). By surface analysis, synonym + -ous. 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 "synonymous", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

staggering#15,066Volkswagen#15,083Yugoslavia#15,087regression#15,043

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

utilization16 variantspicturesque16 variantsexpectancy16 variantsJavaScript16 variants

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

Source: FrequencyWords open word-frequency list