Used when someone disappears unexpectedly and no one can explain where they went.

Sudden Mystery

This phrase is figurative, not meaning the person literally left the planet.

Not Literally

Refers to something, like dinosaurs or civilizations, that no longer exists today.

Implies that what has disappeared cannot come back or be found again.

Often used to describe outdated technology replaced by modern inventions.

Describes a cultural item that was once common but is now rare due to changes in society.