(countable, software) Initialism of interrupt service routine. / (uncountable, espionage) Initialism of intelligence, surveillance, reconnaissance (“spycraft”).

(law) Abbreviation of Israel.

plural of ISR

The State of Israel, a modern country in the Middle East, at the eastern shore of the Mediterranean.

A person from Israel or of Israeli descent.

Of, from, or pertaining to Israel, the Israeli people.

Initialism of International Self Realization Healing Association.

A native or inhabitant of (i) the united nation of Israel (under the Judges, and then kings Saul, David and Solomon), or (ii) the later northern kingdom centered in Samaria, distinct from kingdom of Judah centered in Jerusalem.

Of or pertaining to the ancient nation(s) of Israel or the inhabitants thereof. / (rare, chiefly in Protestantism) Of or pertaining to the descendants of the patriarch Jacob.

(non-native speakers' English) Israel.