us'svsUSOWhat's the difference?

Quick tell: us's is a contraction, USO is a noun, so they fill different roles in a sentence.

Which to use

“us's” is a contraction and “USO” is a noun - they look or sound alike but fill different roles in a sentence.

#40,501
“us's” frequency rank
#35,573
“USO” frequency rank
76074
confusion score

Side-by-Side Comparison

Feature us's USO
Definition Contraction of us + is. Unidentified submerged object or unidentified submarine object.

Letter map: us's vs USO

Shared letters muted; letters that set us's and USO apart highlighted. Shared run: 2.

4 ch
us's
3 ch
USO

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: us's is acontraction and USOanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 76074, derived from the frequency rank of both members and their visual similarity.

us's is recorded at frequency rank #40,501, classified as acontraction, pronounced /ˈʌsɪz/. USO is at rank #35,573, tagged as anoun.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 76074, this pair ranks #31,144 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of us's vs USO

Shared letters: su. Private to "us's": -. Private to "USO": o.

"us's" · 3 letters · shape VCC  ·  "USO" · 3 letters · shape VCV

Frequently Asked Questions

Can "us's" and "USO" be used interchangeably?
No - they are not even the same part of speech. "us's" is a contraction and "USO" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "us's" or "USO"?
"USO" is the more common of the two: it sits at frequency rank #35,573 in our English list, against #40,501 for "us's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list