Which to use
“space” and “stack” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #13,845
- “space” frequency rank
- #38,497
- “stack” frequency rank
- 52342
- confusion score
Side-by-Side Comparison
| Feature | space | stack |
|---|---|---|
| Definition | espaço | acúmulo, especialmente organizado no eixo vertical; pilha |
Where the eye mixes space and stack
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses space with stack
A purely visual mix-up. space (/ˈspeɪs/) and stack (/stæk/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 52342, derived from the frequency rank of both members and their visual similarity.
space is recorded at frequency rank #13,845, classified as anoun, pronounced /ˈspeɪs/. stack is at rank #38,497, tagged as anoun, pronounced /stæk/.
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 52342, this pair ranks #12,827 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of space vs stack
Shared letters: acs. Private to "space": ep. Private to "stack": kt.
"space" · 5 letters · shape CCVCV · "stack" · 5 letters · shape CCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "space" for "stack" ever safe?
Frequency check: "space" vs "stack" - 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 "space" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "stack" - compare definitions side by side with the headword page. Word entry
- This pair ranks #12,827 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "space" and "stack" also get mixed up with nearby pairs, the highest-scored neighbour is "spark vs stack". 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 #12,827 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.