common sense

noun

"common-sense" is a 11-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Ordinary sensible understanding; one's basic intelligence which allows for plain understanding and without which good decisions or judgments cannot be made.

Key facts for common sense
PropertyValue
Headwordcommon sense
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “common sense” sits in English frequency

common sense falls 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

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

common sense doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: Calque of Middle French sens commun and its source, Latin sēnsus commūnis, itself a calque of Ancient Greek κοινὴ αἴσθησις (koinḕ aísthēsis). The correct English form is common sense, spelled C-O-M-M-O-N- -S-E-N-S-E.

Definition

  1. 1
    Ordinary sensible understanding; one's basic intelligence which allows for plain understanding and without which good decisions or judgments cannot be made.
  2. 2
    One of the four interior senses; the one by which information from the five exterior senses is understood and interpreted.

Etymology

Calque of Middle French sens commun and its source, Latin sēnsus commūnis, itself a calque of Ancient Greek κοινὴ αἴσθησις (koinḕ aísthēsis).

Synonyms

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 "common sense"?
"common sense" is spelled C-O-M-M-O-N- -S-E-N-S-E.
What does "common sense" mean?
As a noun, "common sense" means: Ordinary sensible understanding; one's basic intelligence which allows for plain understanding and without which good decisions or judgments cannot be made.
What is the origin of the word "common sense"?
Calque of Middle French sens commun and its source, Latin sēnsus commūnis, itself a calque of Ancient Greek κοινὴ αἴσθησις (koinḕ aísthēsis). 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.

Using “common sense”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-O-M-M-O-N- -S-E-N-S-E - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list