FarsvsfastConfusable pair

Quick tell: Fars is a name, fast is an adjective, so they fill different roles in a sentence.

Which to use

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

#49,329
“Fars” frequency rank
#767
“fast” frequency rank
50096
confusion score

Side-by-Side Comparison

Feature Fars fast
Definition A province of Iran. Firmly or securely fixed in place; stable.

Letter map: Fars vs fast

Shared letters muted; letters that set Fars and fast apart highlighted. Shared run: 3.

4 ch
Fars
4 ch
fast

Part-of-speech tell for Fars / fast

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Fars is aname and fastanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50096, derived from the frequency rank of both members and their visual similarity.

Fars is recorded at frequency rank #49,329, classified as aname. fast is at rank #767, tagged as anadj, pronounced /fɑːst/.

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 50096, this pair ranks #177,404 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Fars vs fast

Shared letters: afs. Private to "Fars": r. Private to "fast": t.

"Fars" · 4 letters · shape CVCC  ·  "fast" · 4 letters · shape CVCC

Known mistypes of this pair

  • Farsafrs · farrs · farss · fasr · ffars · fras
  • fastafst · fasst · fastt · ffast · fsat

Frequently Asked Questions

Is swapping "Fars" for "fast" ever safe?
No - they are not even the same part of speech. "Fars" is a name and "fast" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Fars" vs "fast" - which ranks higher?
"fast" is the more common of the two: it sits at frequency rank #767 in our English list, against #49,329 for "Fars". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "Fars" and "fast". Here's where to go from here.

  • Full dictionary entry for "Fars" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fast" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #177,404 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Fars" and "fast" also get mixed up with nearby pairs, the highest-scored neighbour is "Fars vs Fata". 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 #177,404 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