ISO1
/ʌɪɛsˈəʊ
/International Organization for Standardization.
Origin
From Greek isos 'equal'; the term is often erroneously thought to be an abbreviation.
ISO2
/ʌɪɛsˈəʊ/abbreviation historical
(In the UK) Imperial Service Order, awarded to British and commonwealth civil servants (discontinued in 1993).