9-1-1

Origin

The official form of the service's name in regulations and materials from the United States National Emergency Number Association and Federal Communication Commission.

Full definition of 9-1-1

Proper noun

9-1-1

(plural 9-1-1s)

Noun

9-1-1

(countable and uncountable; plural 9-1-1s)

(uncommon)

Verb

verb

(rare)