Hanoi
/hɑːˈnɔɪ/
"hanoi" is a 5-letter English headword indexed on PlainSpell.
The verdict
“Hanoi” is a moderately-common English word, ranked #17,376 in English word frequency and used as a proper noun.
- #17,376
- frequency rank, English
- 5
- letters
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The capital city of Vietnam.
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 | Hanoi |
| Language | English |
| Part of speech | Proper noun |
| IPA | /hɑːˈnɔɪ/ |
| Letters | 5 |
| Frequency rank | #17,376 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “Hanoi” sits in English frequency
Spelling & Dictionary Insight
The English entry for Hanoi is 5 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /hɑːˈnɔɪ/. Corpus data places it at rank #17,376 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 6 likely wrong-spelling variants for Hanoi, with forms such as "ahnoi", "hanio", and "hannoi". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "hao", "hoi", "Hans", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From Vietnamese Hà Nội, which is a Sino-Vietnamese word, 河內. The correct English form is Hanoi, spelled H-A-N-O-I.
Definition
- 1The capital city of Vietnam.
- 2the Vietnamese government.
Etymology
From Vietnamese Hà Nội, which is a Sino-Vietnamese word, 河內.
Synonyms
This word in other languages
Common misspellings
Also misspelled as: ahnoi,hanio,hannoi,haoni,hhanoi,hnaoi
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of Hanoi - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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 “Hanoi”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is H-A-N-O-I - every other letter order is a misspelling in standard orthography.
- Say it as /hɑːˈnɔɪ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “hao” - see the side-by-side comparison. Hanoi vs hao
- Browse more English words and confusable pairs in the same reference. English words
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.