Which to use
“efectivas” is an adjective and “efectivos” is a noun - they look or sound alike but fill different roles in a sentence.
- #11,959
- “efectivas” frequency rank
- #7,013
- “efectivos” frequency rank
- 18972
- confusion score
Side-by-Side Comparison
| Feature | efectivas | efectivos |
|---|---|---|
| Definition | Forma del femenino plural de efectivo. | Forma del plural de efectivo. |
Where the eye mixes efectivas and efectivos
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Look-alike desk: efectivas vs efectivos
These two trip readers on the page rather than in the ear: efectivas is [efekˈt̪iβ̞as] while efectivos is [efekˈt̪iβ̞os]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “efectivas” becomes o in “efectivos”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 18972, derived from the frequency rank of both members and their visual similarity.
efectivas is recorded at frequency rank #11,959, classified as anadj, pronounced [efekˈt̪iβ̞as]. efectivos is at rank #7,013, tagged as anoun, pronounced [efekˈt̪iβ̞os].
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 18972, this pair ranks #265,708 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of efectivas vs efectivos
Shared letters: cefistv. Private to "efectivas": a. Private to "efectivos": o.
"efectivas" · 9 letters · shape VCVCCVCVC · "efectivos" · 9 letters · shape VCVCCVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "efectivas" for "efectivos" ever safe?
Frequency check: "efectivas" vs "efectivos" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "efectivas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "efectivos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #265,708 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "efectivas" and "efectivos" also get mixed up with nearby pairs, the highest-scored neighbour is "efectivas vs ejecutivas". 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 #265,708 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.