foremostvsFormosaTell them apart

Quick tell: foremost is a adjective, Formosa is a name, so they fill different roles in a sentence.

Which to use

“foremost” is an adjective and “Formosa” is a name - they look or sound alike but fill different roles in a sentence.

#9,900
“foremost” frequency rank
#38,846
“Formosa” frequency rank
48746
confusion score

Side-by-Side Comparison

Feature foremost Formosa
Definition Positioned in front of (all) others in space, most forward. Synonym of Taiwan: an island of East Asia.

Where the eye mixes foremost and Formosa

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. foremost runs 8 letters (CVCVCVCC) against Formosa's 7 (CVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

8 ch
foremost
7 ch
Formosa

Visual trap between foremost and Formosa

These two trip readers on the page rather than in the ear: foremost is /ˈfɔː.məʊst/ while Formosa is /fɔːˈməʊ.sə/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs name), which is usually the fastest check. Our composite confusion score for this pair is 48746, derived from the frequency rank of both members and their visual similarity.

foremost is recorded at frequency rank #9,900, classified as anadj, pronounced /ˈfɔː.məʊst/. Formosa is at rank #38,846, tagged as aname, pronounced /fɔːˈməʊ.sə/.

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 48746, this pair ranks #190,145 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of foremost vs Formosa

Shared letters: fmors. Private to "foremost": et. Private to "Formosa": a.

"foremost" · 8 letters · shape CVCVCVCC  ·  "Formosa" · 7 letters · shape CVCCVCV

Known mistypes of this pair

  • foremost ← fforemost · foermost · foremmost · foremosst · foremostt · foremots · foremsot · foreomst
  • Formosa ← fformosa · fomrosa · formmosa · formoas · formossa · formsoa · foromsa · forrmosa

Frequently Asked Questions

Is swapping "foremost" for "Formosa" ever safe?
No - they are not even the same part of speech. "foremost" is an adjective and "Formosa" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "foremost" or "Formosa"?
"foremost" is the more common of the two: it sits at frequency rank #9,900 in our English list, against #38,846 for "Formosa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "foremost" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Formosa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,145 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "foremost" and "Formosa" also get mixed up with nearby pairs, the highest-scored neighbour is "Formosa vs formula". 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 #190,145 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