1975 23 May 14/1 In describing the culprits the spokesman could say that it was PIRA.., blaming the deed on the Provisionals.
1987 T. Paulin 44 Old Mollynocks and Pisspot'll be delighted to see you chaps back in the ring with Pira.
1998 T. Clancy vii. 142 What if terrorists—usually they thought of the Irish PIRA or INLA—attacked one of the Royal residences.