International Organization for Standardization

(in the UK) Imperial Service Order, awarded to British and Commonwealth civil servants (discontinued in 1993)

a state or period of isolating from others, especially in order to avoid catching or transmitting an infectious disease

my friends commented on how we forgot how to socialize while we were in iso

our eight-day iso feels like a month

an iso ward

denoting a play in which an attacking player engages a particular defender in a one-on-one match-up

he came bursting through on an iso play for a 52-yard touchdown