• human. or animal. someone disappeared and has not been seen since, or will disappear and not be seen again: one left (took off) and that’s the last we ever saw of him
    • and that was the last that was ever seen
    • one left (disappeared) and was never heard of again
    • (in refer. to something mentioned in the preceding context that has been lost, stolen, borrowed etc.) something was never seen again or will never be seen again: it disappeared without a trace
    • it had vanished into thin air