Which to use
“serial” is an adjective and “series” is a noun - they look or sound alike but fill different roles in a sentence.
- #12,980
- “serial” frequency rank
- #8,113
- “series” frequency rank
- 21093
- confusion score
Side-by-Side Comparison
| Feature | serial | series |
|---|---|---|
| Definition | pertencente a série ou relativo a ela | forma plural de serie |
Letter map: serial vs series
Shared letters muted; letters that set serial and series apart highlighted. Shared run: 4.
Part-of-speech tell for serial / series
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: serial is anadjective and seriesanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 21093, derived from the frequency rank of both members and their visual similarity.
serial is recorded at frequency rank #12,980, classified as anadj. series is at rank #8,113, tagged as anoun, pronounced /ˈse.ɾjes/.
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 21093, this pair ranks #49,260 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of serial vs series
Shared letters: eirs. Private to "serial": al. Private to "series": -.
"serial" · 6 letters · shape CVCVVC · "series" · 6 letters · shape CVCVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "serial" for "series" ever safe?
Which is more common, "serial" or "series"?
After this comparison
Pair "serial" vs "series" is on the table, pick a follow-up below.
- Full dictionary entry for "serial" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "series" - compare definitions side by side with the headword page. Word entry
- This pair ranks #49,260 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "serial" and "series" also get mixed up with nearby pairs, the highest-scored neighbour is "serial vs serviçal". 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 #49,260 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.