Which to use
“und” is a conjunction and “under” is a preposition - they look or sound alike but fill different roles in a sentence.
- #29,551
- “und” frequency rank
- #8,833
- “under” frequency rank
- 38384
- confusion score
Side-by-Side Comparison
| Feature | und | under |
|---|---|---|
| Definition | (conjunção coordenativa) e. | debaixo de, embaixo de: |
Letter map: und vs under
Shared letters muted; letters that set und and under apart highlighted. Shared run: 3.
Grammar separator: und vs under
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: und is aconjunction and underapreposition. On the page they differ by 2 extra letter(s) - “und” sits inside “under”. Our composite confusion score for this pair is 38384, derived from the frequency rank of both members and their visual similarity.
und is recorded at frequency rank #29,551, classified as aconj, pronounced /ʊnt/. under is at rank #8,833, tagged as aprep.
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 38384, this pair ranks #28,090 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of und vs under
Shared letters: dnu. Private to "und": -. Private to "under": er.
"und" · 3 letters · shape VCC · "under" · 5 letters · shape VCCVC
Known mistypes of this pair
- under ← nuder · udner · undder · underr · undre · unedr · unnder
Frequently Asked Questions
Is swapping "und" for "under" ever safe?
In ordinary Portuguese text, does "und" or "under" show up more?
After this comparison
Pair "und" vs "under" is on the table, pick a follow-up below.
- Full dictionary entry for "und" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "under" - compare definitions side by side with the headword page. Word entry
- This pair ranks #28,090 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "und" and "under" also get mixed up with nearby pairs, the highest-scored neighbour is "ú vs und". 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 #28,090 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.