operating system
/ˈɒpəˌɹeɪtɪŋ ˌsɪstəm/
"operating-system" is a 15-letter English headword indexed on PlainSpell.
The verdict
“operating system” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 16
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Software that is designed for controlling the allocation and the use of various hardware resources to tasks and remote terminals.
Corpus desk
Index EN-operating-system · operating system · English
operating system · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 16 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.
| Property | Value |
|---|---|
| Headword | operating system |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɒpəˌɹeɪtɪŋ ˌsɪstəm/ |
| Letters | 16 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “operating system” in English
Rare enough to double-check
operating system is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈɒpəˌɹeɪtɪŋ ˌsɪstəm/. Rarity is why readers land here mid-draft. Gloss: "Software that is designed for controlling the allocation and the use of various hardware resources to tasks and remote terminals.".
No misspelling variants are generated for operating system in our index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From operating + system. First use appears c. the 1950s. The correct English form is operating system, spelled O-P-E-R-A-T-I-N-G- -S-Y-S-T-E-M.
Definition
- 1Software that is designed for controlling the allocation and the use of various hardware resources to tasks and remote terminals.
Recorded use
Wiktionary exampleThese source excerpts show how operating system appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The operating system is the key mediator of access by processes within a computer system.
Etymology
From operating + system. First use appears c. the 1950s.
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.