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soundness

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

9 characters

Language

English

word origin

Source

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Detailed reference entry for the English word "soundness", 9-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "soundness" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "soundness" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

soundness is aEnglishnoun. It means: The state or quality of being sound.

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Key facts for soundness
PropertyValue
Headwordsoundness
LanguageEnglish
Part of speechNoun
Letters9
Frequency rank#49,642
Misspellings tracked12
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of soundness in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for soundness is 9 letters long, classified as anoun. Corpus data places it at rank #49,642 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 12 documented wrong-spelling variants for soundness, with forms such as "osundness", "sonudness", and "soudnness". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Middle English soundenes, soundnes, from Old English *sundnes, *ġesundnes (attested in onsundnes), from Proto-West Germanic *sundnassī (“soundness, health”); equivalent to sound + -ness. Cognate with West Frisian sûnens (“soundness, health”), Middle Lo… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is soundness, spelled S-O-U-N-D-N-E-S-S, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The state or quality of being sound.
  2. 2
    The result or product of being sound.
  3. 3
    The property (of an argument) of not only being valid, but also of having true premises.
  4. 4
    The property of a logical theory that whenever a wff is a theorem then it must also be valid. Symbolically, letting T represent a theory within logic L, this can be represented as the property that whenever T⊢φ is true, then T⊨φ must also be true, for any wff φ of logic L.

Etymology

From Middle English soundenes, soundnes, from Old English *sundnes, *ġesundnes (attested in onsundnes), from Proto-West Germanic *sundnassī (“soundness, health”); equivalent to sound + -ness. Cognate with West Frisian sûnens (“soundness, health”), Middle Low German suntnisse (“soundness, health”), Middle High German suntnisse (“soundness, health”), German Gesundnis (“health”).

This word in other languages

Common misspellings

Also misspelled as: osundness,sonudness,soudnness,sounddness,soundenss,soundnes,soundnness,soundnses,sounndess,sounndness,ssoundness,suondness

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for soundness

Misspelling Variants of "soundness"

osundness9sonudness9soudnness9sounddness10soundenss9soundnes8soundnness10soundnses9
Misspelling Variants of "soundness"

Frequency rank: #49,642 in English

Frequently Asked Questions

How do you spell "soundness"?
"soundness" is spelled S-O-U-N-D-N-E-S-S.
What does "soundness" mean?
As a noun, "soundness" means: The state or quality of being sound.
What are common misspellings of "soundness"?
Common misspellings include "osundness", "sonudness", "soudnness", "sounddness", "soundenss". The correct spelling is "soundness".
What is the origin of the word "soundness"?
From Middle English soundenes, soundnes, from Old English *sundnes, *ġesundnes (attested in onsundnes), from Proto-West Germanic *sundnassī (“soundness, health”); equivalent to sound + -ness. Cognate with West Frisian sûnens (“soundness, health”),... See the full etymology section above for more details.
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Nearby English words

Other entries that begin with the letter S in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.