There are 2 main definitions of ISO in English:

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ISO 1

Line breaks: ISO
Pronunciation: /ʌɪɛsˈəʊ/

Origin

From Greek isos 'equal'; the term is often erroneously thought to be an abbreviation.

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There are 2 main definitions of ISO in English:

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ISO 2 Line breaks: ISO
Pronunciation: /ʌɪɛsˈəʊ/

abbreviation

historical
(In the UK) Imperial Service Order, awarded to British and commonwealth civil servants (discontinued in 1993).

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Word of the day haughty
Pronunciation: ˈhɔːti
adjective
arrogantly superior and disdainful