IUD
"iud" is a 3-letter English headword indexed on PlainSpell.
The verdict
“IUD” is uncommon English (frequency #52,418 among 17,902 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #52,418
- frequency rank, English
- 17,902
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of intrauterine device.
Corpus desk
Index EN-iud · IUD · English
IUD · rank #52,418 · 0 variants · 0 confusables
- FREQ-RARE #52,418
- LEN-MID 3 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 17,902
- PHOTO-FINISH ITF
Nearest frequency peer: ITF (-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 neighbourhood for “IUD”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- Islay
Islay
47,586 corpus weight
- iterate
iterate
47,585 corpus weight
- ITF
ITF
47,584 corpus weight
- IUD
IUD
47,583 corpus weight
- Iwata
Iwata
47,582 corpus weight
- Jabari
Jabari
47,581 corpus weight
What this shows Bars show where “IUD” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | IUD |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #52,418 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “IUD” sits in English frequency
Rare enough to double-check
IUD is uncommon English at frequency #52,418 among 17,902 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.
We couldn't generate a plausible misspelling set for IUD, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: The Philippine sense is due to the streetfood being reminiscent of an intrauterine device. The correct English form is IUD, spelled I-U-D.
Definition
- 1Initialism of intrauterine device.
- 2Initialism of inhalant use disorder.
- 3Initialism of internet use disorder.
- 4Barbecued chicken intestine, sold as street food.
Etymology
The Philippine sense is due to the streetfood being reminiscent of an intrauterine device.
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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "IUD", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).
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.