effectsvseffortsWhich spelling fits?

Which to use

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

#1,364
“effects” frequency rank
#1,756
“efforts” frequency rank
3120
confusion score

Side-by-Side Comparison

Feature effects efforts
Definition plural of effect plural of effort

Where the eye mixes effects and efforts

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
effects
7 ch
efforts

Visual trap between effects and efforts

A purely visual mix-up. effects (/ɪˈfɛkts/) and efforts (/ˈɛf.əts/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 3120, derived from the frequency rank of both members and their visual similarity.

effects is recorded at frequency rank #1,364, classified as anoun, pronounced /ɪˈfɛkts/. efforts is at rank #1,756, tagged as anoun, pronounced /ˈɛf.əts/.

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 3120, this pair ranks #523,043 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of effects vs efforts

Shared letters: efst. Private to "effects": c. Private to "efforts": or.

"effects" · 7 letters · shape VCCVCCC  ·  "efforts" · 7 letters · shape VCCVCCC

Known mistypes of this pair

  • effectsefects · efefcts · effcets · effeccts · effecst · effectss · effectts · effetcs
  • effortsefforrts · efforst · effortss · effortts · effotrs · effrots · efofrts · eforts

Frequently Asked Questions

Can "effects" and "efforts" be used interchangeably?
No. They are said differently (/ɪˈfɛkts/ versus /ˈɛf.əts/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "effects" vs "efforts" - which ranks higher?
"effects" is the more common of the two: it sits at frequency rank #1,364 in our English list, against #1,756 for "efforts". 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 "effects" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "efforts" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #523,043 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "effects" and "efforts" also get mixed up with nearby pairs, the highest-scored neighbour is "effector vs effects". 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 #523,043 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