forcesvsfortiesWhat's the difference?

Which to use

“forces” and “forties” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,120
“forces” frequency rank
#27,467
“forties” frequency rank
28587
confusion score

Side-by-Side Comparison

Feature forces forties
Definition plural of force The fifth decade of a century: the 1840s, 1940s, 2040s, etc.

Letter map: forces vs forties

Shared letters muted; letters that set forces and forties apart highlighted. Shared run: 5.

6 ch
forces
7 ch
forties

Spelling & dictionary notes on forces vs forties

forces and forties are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 28587, derived from the frequency rank of both members and their visual similarity.

forces is recorded at frequency rank #1,120, classified as anoun, pronounced /ˈfɔɹ.sɪz/. forties is at rank #27,467, 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 28587, this pair ranks #369,883 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of forces vs forties

Shared letters: efors. Private to "forces": c. Private to "forties": it.

"forces" · 6 letters · shape CVCCVC  ·  "forties" · 7 letters · shape CVCCVVC

Known mistypes of this pair

  • forcesfforces · focres · forcces · forcess · forcse · forecs · forrces · froces
  • fortiesfforties · forites · forrties · forteis · fortiess · fortise · fortties · fotries

Frequently Asked Questions

Can "forces" and "forties" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "forces" or "forties" show up more?
"forces" is the more common of the two: it sits at frequency rank #1,120 in our English list, against #27,467 for "forties". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "forces" and "forties". Here's where to go from here.

  • Full dictionary entry for "forces" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "forties" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #369,883 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "forces" and "forties" also get mixed up with nearby pairs, the highest-scored neighbour is "forties vs fortify". 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 #369,883 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