seriesvsseriousConfusable pair

Quick tell: series is a verb, serious is an adjective, so they fill different roles in a sentence.

Which to use

“series” is a verb and “serious” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,018
“series” frequency rank
#40,840
“serious” frequency rank
53858
confusion score

Side-by-Side Comparison

Feature series serious
Definition 2. Person Singular Indikativ Konditional Aktiv des Verbs ésser ernst

Letter map: series vs serious

Shared letters muted; letters that set series and serious apart highlighted. Shared run: 5. series runs 6 letters (CVCVVC) against serious's 7 (CVCVVVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
series
7 ch
serious

Role in the sentence - series and serious

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: series is averb and seriousanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 53858, derived from the frequency rank of both members and their visual similarity.

series is recorded at frequency rank #13,018, classified as averb, pronounced [səˈɾiəs]. serious is at rank #40,840, tagged as anadj, pronounced […].

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 53858, this pair ranks #1,041,605 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of series vs serious

Shared letters: eirs. Private to "series": -. Private to "serious": ou.

"series" · 6 letters · shape CVCVVC  ·  "serious" · 7 letters · shape CVCVVVC

Known mistypes of this pair

  • series ← esries · seires · sereis · seriess · serise · serries · sreies · sseries
  • serious ← esrious · seirous · seriosu · seriouss · seriuos · seroius · serrious · sreious

Frequently Asked Questions

Do "series" and "serious" mean the same thing in a sentence?
No - they are not even the same part of speech. "series" is a verb and "serious" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "series" or "serious" show up more?
"series" is the more common of the two: it sits at frequency rank #13,018 in our German list, against #40,840 for "serious". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "series" and "serious". Here's where to go from here.

  • Full dictionary entry for "series" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "serious" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,041,605 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "series" and "serious" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs serious". 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 #1,041,605 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list