Literally, the term means "a good day." Over the centuries, however, it came to be used primarily on festivals, when Jews greeted one another with the expression "gut yom tov."
The term has also been applied to any special occasion that raised a person above the mundane aspects of life or above pain, affliction, and daily concerns.
Hundreds of Jews, including some students of the local Chabad Yeshivah, were among the thousands of victims to perish in a devastating earthquake that struck Agadir, Morocco on the 2nd of Adar in 1960.