time capsule

1. 1.

   container for preserving historical records to be discovered at some future time

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Questions about time capsule

What does time capsule mean?

time capsule means "container for preserving historical records to be discovered at some future time".

Is time capsule a common word?

time capsule is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.