There are 2 main definitions of ISO in English:

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ISO 1

Pronunciation:
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There are 2 main definitions of ISO in English:

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ISO 2

Pronunciation: /ʌɪɛsˈəʊ/

Entry from British & World English dictionary

abbreviation

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