no-op
"no-op" is a 4-letter English headword indexed on PlainSpell.
The verdict
“no-op” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 5
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An instruction or operation that has no effect; a null operation.
Corpus desk
Index EN-no-op · no-op · English
no-op · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "N" 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 | no-op |
| Language | English |
| Part of speech | Noun |
| Letters | 5 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “no-op” in English
Rare enough to double-check
no-op is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "An instruction or operation that has no effect; a null operation.".
No misspelling variants are generated for no-op 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, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: Short for no operation (NOP), common assembly language instruction. The correct English form is no-op, spelled N-O---O-P.
Definition
- 1An instruction or operation that has no effect; a null operation.
Recorded use
Wiktionary examplesThese source excerpts show how no-op appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Points may be coincident and the number of specified points can be zero, in which case the function is a no-op.
A JMP instruction qualifies as a no-op in this sense.
Etymology
Short for no operation (NOP), common assembly language instruction.
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.