The word "LIRT" is an unusual and possibly made-up word that does not have a widely recognized meaning. When considering its spelling, it can be broken down into three sounds: /l/ for the "L" sound, /ɪ/ for the "I" sound, and /rt/ for the "RT" sound. This last sound is sometimes difficult for English speakers who are not familiar with IPA representation, but it essentially means that the "R" and "T" sounds are pronounced together as one.