Which to use
“ISBN” is an abbrev and “isto” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #11,899
- “ISBN” frequency rank
- #349
- “isto” frequency rank
- 12248
- confusion score
Side-by-Side Comparison
| Feature | ISBN | isto |
|---|---|---|
| Definition | sigla formada com as iniciais de International Standard Book Number, sequência numérica de dez ou treze dígitos com a finalidade de identificação numérica de um livro segundo seu título, autor, país, ou código de idioma, e a editora, individualizando inclusive edições diferentes de tal forma que cada livro tenha um número próprio e único | indica algo que está próximo a quem fala ou assunto de que se fala |
Where the spellings diverge
Shared letters are muted; the letters that actually set ISBN and isto apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ISBN is anabbrev and istoapronoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 12248, derived from the frequency rank of both members and their visual similarity.
ISBN is recorded at frequency rank #11,899, classified as anabbrev. isto is at rank #349, tagged as apron, pronounced /ˈis.tu/.
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 12248, this pair ranks #60,410 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ISBN vs isto
Shared letters: is. Private to "ISBN": bn. Private to "isto": ot.
"ISBN" · 4 letters · shape VCCC · "isto" · 4 letters · shape VCCV
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "ISBN" and "isto" be used interchangeably?
Which is more common, "ISBN" or "isto"?
Remembering ISBN vs isto
The fastest way to pick the right one every time.
- Check the role first: if you need an abbrev, it's “ISBN”; for a pronoun, it's “isto”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “ISBN” entry
- Browse more pairs most likely to be confused. Most confusable