usedvsUSPSWhat's the difference?

Quick tell: used is a verb, USPS is a name, so they fill different roles in a sentence.

Which to use

“used” is a verb and “USPS” is a name - they look or sound alike but fill different roles in a sentence.

#156
“used” frequency rank
#23,149
“USPS” frequency rank
23305
confusion score

Side-by-Side Comparison

Feature used USPS
Definition simple past and past participle of use Initialism of United States Postal Service.

Where the eye mixes used and USPS

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
used
4 ch
USPS

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: used is /juːzd/ while USPS is /ˌju ɛs pi ˈɛs/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs name), which is usually the fastest check. Our composite confusion score for this pair is 23305, derived from the frequency rank of both members and their visual similarity.

used is recorded at frequency rank #156, classified as averb, pronounced /juːzd/. USPS is at rank #23,149, tagged as aname, pronounced /ˌju ɛs pi ˈɛs/.

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 23305, this pair ranks #410,305 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of used vs USPS

Shared letters: su. Private to "used": de. Private to "USPS": p.

"used" · 4 letters · shape VCVC  ·  "USPS" · 4 letters · shape VCCC

Known mistypes of this pair

  • useduesd · usde · usedd · ussed
  • USPSsups · upss · uspps · uspss · ussp · ussps

Frequently Asked Questions

Can "used" and "USPS" be used interchangeably?
No - they are not even the same part of speech. "used" is a verb and "USPS" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "used" or "USPS"?
"used" is the more common of the two: it sits at frequency rank #156 in our English list, against #23,149 for "USPS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list