OCD
"ocd" is a 3-letter English headword indexed on PlainSpell.
The verdict
“OCD” sits in 20 confusable pairs (corpus #19,922) as an adjective. The look-alike neighbours are the real trap.
- #19,922
- frequency rank, English
- 1,431
- “O” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Exhibiting an obsessive tendency.
Corpus desk
Index EN-ocd · OCD · English
OCD · rank #19,922 · 0 variants · 20 confusables
- FREQ-MID #19,922
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 1,431
- PHOTO-FINISH occult
Nearest frequency peer: occult (-1 rank slots)
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.
Frequency neighbours of confusable “OCD”
Peers at similar corpus weight, separate from look-alike pairs below
- nuke
nuke
80,082 corpus weight
- O'Connell
O'Connell
80,081 corpus weight
- occult
occult
80,080 corpus weight
- OCD
OCD
80,079 corpus weight
- Olympian
Olympian
80,078 corpus weight
- Osama
Osama
80,076 corpus weight
What this shows Bars place “OCD” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | OCD |
| Language | English |
| Part of speech | Adjective |
| Letters | 3 |
| Frequency rank | #19,922 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “OCD”
Easy to mix with look-alikes
The spelling risk for OCD is neighbouring look-alikes ("of", "on", …), not just typos; it is anadjective. Frequency #19,922 among 1,431 “O” headwords. Gloss: "Exhibiting an obsessive tendency.".
The misspelling generator found no plausible variants for OCD, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "of", "on", "or", and more, where similar look or sound leads writers to substitute one word for another in context.
No borrowing history is documented for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is OCD, spelled O-C-D.
Definition
- 1Exhibiting an obsessive tendency.
Recorded use
Wiktionary examplesThese source excerpts show how OCD appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Three years and you still have your ex's things? Lizzy, I knew you were uptight and OCD, and often humorless.
So I wanted to get us some simple takeout but of course, I started obsessing over what you'd be in the mood for. Hence, we have the OCD buffet of sushi, steak, and pasta.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "OCD"?
What does "OCD" mean?
What words are commonly confused with "OCD"?
What language does "OCD" come from?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "OCD", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).