UAS
"uas" is a 3-letter English headword indexed on PlainSpell.
The verdict
“UAS” sits in 20 confusable pairs (corpus #49,687) as a noun. The look-alike neighbours are the real trap.
- #49,687
- frequency rank, English
- 1,433
- “U” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of uncrewed aerial system, unmanned aerial system, uncrewed aircraft system, or unmanned aircraft system: an aircraft with no onboard pilot, and sometimes completely unpiloted, as well a...
Corpus desk
Index EN-uas · UAS · English
UAS · rank #49,687 · 0 variants · 20 confusables
- FREQ-MID #49,687
- LEN-MID 3 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 1,433
- PHOTO-FINISH twang
Nearest frequency peer: twang (-3 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 “UAS”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- tuft
tuft
50,319 corpus weight
- turpentine
turpentine
50,318 corpus weight
- twang
twang
50,317 corpus weight
- UAS
UAS
50,314 corpus weight
- underpass
underpass
50,310 corpus weight
- undeterred
undeterred
50,309 corpus weight
What this shows Bars show where “UAS” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
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 | UAS |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #49,687 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “UAS” sits in English frequency
Easy to mix with look-alikes
The spelling risk for UAS is neighbouring look-alikes ("up", "us", …), not just typos; it is anoun. Frequency #49,687 among 1,433 “U” headwords. Gloss: "Initialism of uncrewed aerial system, unmanned aerial system, uncrewed aircraft system, or unmanned aircraft system: an aircraft with no onboard pilot, and sometimes completely unpiloted, as well a...".
UAS doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. It also participates in 20 confusable-pair relationships, "up", "us", "UK", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
No borrowing history is documented for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is UAS, spelled U-A-S.
Definition
- 1Initialism of uncrewed aerial system, unmanned aerial system, uncrewed aircraft system, or unmanned aircraft system: an aircraft with no onboard pilot, and sometimes completely unpiloted, as well as the other components of the system, including automated guidance and telemetry, a remote operator if any, etc.
Recorded use
Wiktionary examplesThese source excerpts show how UAS appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The FAA [Federal Aviation Administration] is using this same methodology to manage the integration of the new UAS technology into the NAS [National Airspace System]. While UASs offer a promising new technology, the limited safety and operational data available to date does not yet support expedited or full integration into the NAS. Because current availab…
Looking at the commercial entities looking to fly in the UAE, they are able to capture images and data via UAS/drone use, and have access to large areas through the approval process of the UAE.
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 "UAS", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).
What to do next
You've looked up "UAS". Here's where to go from here.
- "UAS" maps to 20 confusable pairs in this vintage; the highest-scored is "up". View pair
- Usage frequency rank #49,687 among English headwords in this corpus. Corpus statistics
- Browse more English words in the "U" letter cohort. U–Z browse
- PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.
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.