Interpret the meaning of the idiomatic expression "Missing in action."
The idiomatic expression "Missing in action" is a figurative phrase used to refer to someone who is not present and whose whereabouts are unknown. It typically implies that the person is disappeared or is unaccounted for.
The idiom "Missing in action" means to be absent or unavailable, often, but not necessarily, due to being unaccounted for during a time of conflict or crisis.