IRT

See also: irt and írt

English

Proper noun

IRT

1. Initialism of Interborough Rapid Transit Company.

Prepositional phrase

IRT

1. Initialism of in reference to.

Noun

IRT (countable and uncountable, plural IRTs)

1. The subway lines, collectively, formerly run by the Interborough Rapid Transit Company.
   • 1977 April 30, Steve Blevins, “A Sack-full of Films”, in Gay Community News, page 11:

     A Soho sweetheart wants the man who injured her husband thrown in front of the IRT.

   Take the IRT to Atlantic and change for the R.

2. Initialism of item response theory.
3. Initialism of investigation and recovery team.

Anagrams

• RTI, TIR, TRI, Tir, rit, tri, tri-