DS9
"ds9" is a 2-letter English headword indexed on PlainSpell.
The verdict
“DS9” is an uncommon English word, ranked #70,618 in English word frequency and used as a proper noun.
- #70,618
- frequency rank, English
- 3
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Star Trek: Deep Space Nine, a television program.
| Property | Value |
|---|---|
| Headword | DS9 |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #70,618 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “DS9” sits in English frequency
Spelling & Dictionary Insight
The English entry for DS9 is 3 letters long, classified as a proper noun. Corpus data places it at rank #70,618 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Star Trek: Deep Space Nine, a television program.".
DS9 has no tracked misspelling variants, a sign its spelling follows regular English conventions. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is DS9, spelled D-S-9.
Definition
- 1Star Trek: Deep Space Nine, a television program.
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 “DS9”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-S-9 - every other letter order is a misspelling in standard orthography.
- 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.