R' Luria's acronym is the AR"I. The Hebrew of that roughly translates to Godly Rabbi Isaac. Why is he called Godly, and many other great rabbis are not? Related: Why refer to Isaac Luria as the ...
One of the common ways to refer to the R' Isaac Luria is "the Arizal". I understand this to mean, The Ari, zecher L'bracha (may he be mentioned/remembered for blessing). However, one usually refers ...