common room

noun

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

The verdict

“common room” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A shared lounge found in dormitories, universities, military bases, etc.

Key facts for common room
PropertyValue
Headwordcommon room
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “common room” sits in English frequency

common room 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.

Spelling & Dictionary Insight

The English entry for common room is 11 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "A shared lounge found in dormitories, universities, military bases, etc.".

The misspelling generator found no plausible variants for common room, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This headword's origin isn't recorded in our source data, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is common room, spelled C-O-M-M-O-N- -R-O-O-M.

Definition

  1. 1
    A shared lounge found in dormitories, universities, military bases, etc.

Synonyms

combination roomdayroom

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 room"?
"common room" is spelled C-O-M-M-O-N- -R-O-O-M.
What does "common room" mean?
As a noun, "common room" means: A shared lounge found in dormitories, universities, military bases, etc.
What language does "common room" come from?
"common room" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 room”

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

  • The one correct English spelling is C-O-M-M-O-N- -R-O-O-M - 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