name, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Initialism of interrupt service routine. abbreviation, alt-of, countable, initialism

   "This function registers an interrupt service routine (ISR) with the kernel"

2. 2
   Initialism of intelligence, surveillance, reconnaissance (“spycraft”). abbreviation, alt-of, initialism, uncountable
3. 3
   Initialism of interstate route. US, abbreviation, alt-of, countable, initialism, obsolete, uncountable

Proper Noun

1. 1
   Initialism of Inuvialuit Settlement Region. abbreviation, alt-of, initialism

Synonyms

All synonyms

highwayinterstate highwayinterstate highwayparkway

Example

More examples

"This function registers an interrupt service routine (ISR) with the kernel"

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.