NIH
"nih" is a 3-letter English headword indexed on PlainSpell.
The verdict
“NIH” sits in 20 confusable pairs (corpus #18,376) as a proper noun. The look-alike neighbours are the real trap.
- #18,376
- frequency rank, English
- 1,534
- “N” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of National Institutes of Health.
Corpus desk
Index EN-nih · NIH · English
NIH · rank #18,376 · 0 variants · 20 confusables
- FREQ-MID #18,376
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 1,534
- PHOTO-FINISH nigger
Nearest frequency peer: nigger (-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 “NIH”
Peers at similar corpus weight, separate from look-alike pairs below
- muffin
muffin
81,628 corpus weight
- Nadal
Nadal
81,627 corpus weight
- nigger
nigger
81,626 corpus weight
- NIH
NIH
81,625 corpus weight
- Novak
Novak
81,624 corpus weight
- O'Donnell
O'Donnell
81,623 corpus weight
What this shows Bars place “NIH” 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 | NIH |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #18,376 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “NIH”
Easy to mix with look-alikes
The spelling risk for NIH is neighbouring look-alikes ("NJ", "nm", …), not just typos; it is aproper noun. Frequency #18,376 among 1,534 “N” headwords. Gloss: "Initialism of National Institutes of Health.".
Our edit-distance generator produced no likely misspellings for NIH, since its letter pattern doesn't lend itself to common typo substitutions. It also participates in 20 confusable-pair relationships, "NJ", "nm", "NZ", and more, where similar look or sound leads writers to substitute one word for another in context.
Our source data has no etymology on file for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is NIH, spelled N-I-H.
Definition
- 1Initialism of National Institutes of Health.
Recorded use
Wiktionary exampleThese source excerpts show how NIH appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
“This action aims to ensure that WIV does not receive another dollar of federal funding,” an HHS spokesperson said in a statement. “The move was undertaken due to WIV’s failure to provide documentation on WIV’s research requested by NIH related to concerns that WIV violated NIH’s biosafety protocols.”
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "NIH", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).