vier vs vitro, What's the Difference?

Which to use

“vier” is a num and “vitro” is a noun - they look or sound alike but fill different roles in a sentence.

#328
“vier” frequency rank: #39,117
“vitro” frequency rank: 39445
confusion score

Side-by-Side Comparison

Feature	vier	vitro
Definition	die Kardinalzahl zwischen drei und fünf	in der Regel durchsichtige chemische Verbindung, Glas

Letter map: vier vs vitro

Shared letters muted; letters that set vier and vitro apart highlighted. Shared run: 3.

4 ch

vier

5 ch

vitro

Role in the sentence - vier and vitro

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: vier is anum and vitroanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 39445, derived from the frequency rank of both members and their visual similarity.

vier is recorded at frequency rank #328, classified as anum, pronounced [fiːɐ̯]. vitro is at rank #39,117, tagged as anoun, 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 39445, this pair ranks #1,536,599 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of vier vs vitro

Shared letters: irv. Private to "vier": e. Private to "vitro": ot.

"vier" · 4 letters · shape CVVC · "vitro" · 5 letters · shape CVCCV

Known mistypes of this pair

vier ← iver · veir · vierr · vire · vvier
vitro ← ivtro · virto · vitor · vitrro · vittro · vtiro · vvitro

Frequently Asked Questions

Is swapping "vier" for "vitro" ever safe?

No - they are not even the same part of speech. "vier" is a num and "vitro" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary German text, does "vier" or "vitro" show up more?

"vier" is the more common of the two: it sits at frequency rank #328 in our German list, against #39,117 for "vitro". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "vier" and "vitro".

Full dictionary entry for "vier" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "vitro" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,536,599 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"vier" and "vitro" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs vitro". 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 #1,536,599 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.