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iso-

Portuguese, prefix/ˌi.zo/

iso- is spelled I-S-O (3 letters) and appears 11 times per million words in written Portuguese, the 6,991st most frequent Portuguese word form (wordfreq, 2021 data). Iso- is a Portuguese prefix meaning “iso-” (English Wiktionary, September 2026).

What does iso- mean in English?

prefix

  1. 1

    iso-

    equi-

Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).

How Portuguese dictionaries define it

noun: 1. nome reduzido de International Organization for Standardization ( Organização Internacional para Padronização, Organização Internacional para Estandardização, Organização Internacional de Normalização).

The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.

Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of iso-

  • is- alternative before-vowel

Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce iso-?

  • Brazil /ˌi.zo/
  • Portugal /ˌi.zɔ/

Sources: English Wiktionary, Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

English words that translate to iso-

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is iso- in Portuguese?

iso- appears 11 times per million words in written Portuguese.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after iso-