opioid
/ˈəʊpiɔɪd/
"opioid" is a 6-letter English headword indexed on PlainSpell.
The verdict
“opioid” has 7 generated spelling variants in the English index at frequency #18,908. The variants make it a useful spelling check.
- #18,908
- frequency rank, English
- 15,494
- “O” headwords
- 7
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A substance that has effects similar to opium:
| Property | Value |
|---|---|
| Headword | opioid |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈəʊpiɔɪd/ |
| Letters | 6 |
| Frequency rank | #18,908 |
| Misspellings tracked | 7 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “opioid” sits in English frequency
A misspelling magnet
The generator records 7 spelling variants around opioid (IPA /ˈəʊpiɔɪd/), anoun. Corpus frequency is #18,908 among 15,494 “O” headwords. Wiktionary lists 2 senses, so context still picks the gloss.
Our generated misspelling index lists 7 likely wrong-spelling variants for opioid, with forms such as "oipoid", "opiiod", and "opiodi". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: Attested 1963; from opium + -oid, to distinguish from opiate. The correct English form is opioid, spelled O-P-I-O-I-D.
Definition
- 1A substance that has effects similar to opium:
- 2A substance that has effects similar to opium:
Etymology
Attested 1963; from opium + -oid, to distinguish from opiate.
This word in other languages
Common misspellings
Also misspelled as:
- oipoid
- opiiod
- opiodi
- opioidd
- opoiid
- oppioid
- poioid
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of opioid - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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
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Using “opioid”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is O-P-I-O-I-D - every other letter order is a misspelling in standard orthography.
- Say it as /ˈəʊpiɔɪd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
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.