operating-room

noun

"operating-room" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative form of operating room.

Corpus desk

Index EN-operating-room · operating-room · English

operating-room · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" thin
  • PHOTO-UNK Peer pending

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.

Key facts for operating-room
PropertyValue
Headwordoperating-room
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “operating-room” in English

operating-roomranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

operating-room is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Alternative form of operating room.".

No generated misspelling entries exist for operating-room in our index, which points to an orthography that plays by predictable English rules. 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, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is operating-room, spelled O-P-E-R-A-T-I-N-G---R-O-O-M.

Definition

  1. 1
    Alternative form of operating room.

Recorded use

Wiktionary examples

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

  1. On its being announced that about 25l. was ſtill wanting to complete the new operating-room, (the expence of which is defrayed by a ſubſcription independent of the funds of the hoſpital,) W. C. Trevelyan, eſq; preſented 5l. and Col. Pinney, in the name of the officers of his regt. (the Somerton and Langport local militia) gave 20l. being the ſecond donati…
  2. When it is used for medical clinics, glass doors close it off from the passageway on either side, but along either of these passageways surgical cases can be brought from the etherizing-room to an operating-room on either side, under the amphitheater. These operating-rooms have a northern light, a side light and also a skylight, the latter being shown on…

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 "operating-room"?
"operating-room" is spelled O-P-E-R-A-T-I-N-G---R-O-O-M.
What does "operating-room" mean?
As a noun, "operating-room" means: Alternative form of operating room.
What language does "operating-room" come from?
"operating-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.

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

Source: FrequencyWords open word-frequency list