Oy! (4)
(Other definitions for alas that I've seen before include "Cry of woe" , "woebegone expression" , "Woeful expression" , "Regrettably, unfortunately" , "Archaic exclamation of sorrow or regret" .)
(Other definitions for alas that I've seen before include "Cry of woe" , "woebegone expression" , "Woeful expression" , "Regrettably, unfortunately" , "Archaic exclamation of sorrow or regret" .)