pesovsPSTWhich spelling fits?

Quick tell: peso is a noun, PST is a name, so they fill different roles in a sentence.

Which to use

“peso” is a noun and “PST” is a name - they look or sound alike but fill different roles in a sentence.

#29,034
“peso” frequency rank
#19,948
“PST” frequency rank
48982
confusion score

Side-by-Side Comparison

Feature peso PST
Definition A former unit of currency in Spain and Spain's colonies, worth 8 reales; the Spanish dollar. Initialism of Pacific Standard Time.

Letter map: peso vs PST

Shared letters muted; letters that set peso and PST apart highlighted. Shared run: 2.

4 ch
peso
3 ch
PST

Grammar separator: peso vs PST

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: peso is anoun and PSTaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48982, derived from the frequency rank of both members and their visual similarity.

peso is recorded at frequency rank #29,034, classified as anoun, pronounced /ˈpeɪsəʊ/. PST is at rank #19,948, tagged as aname.

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 48982, this pair ranks #187,978 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of peso vs PST

Shared letters: ps. Private to "peso": eo. Private to "PST": t.

"peso" · 4 letters · shape CVCV  ·  "PST" · 3 letters · shape CCC

Known mistypes of this pair

  • pesoepso · peos · pesso · ppeso · pseo

Frequently Asked Questions

Is swapping "peso" for "PST" ever safe?
No - they are not even the same part of speech. "peso" is a noun and "PST" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "peso" vs "PST" - which ranks higher?
"PST" is the more common of the two: it sits at frequency rank #19,948 in our English list, against #29,034 for "peso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "peso" vs "PST" is on the table, pick a follow-up below.

  • Full dictionary entry for "peso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "PST" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #187,978 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "peso" and "PST" also get mixed up with nearby pairs, the highest-scored neighbour is "pecs vs peso". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #187,978 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list