Definitions from Wiktionary (rehash)

▸ verb:  (transitive) To hash (chop food into small pieces) again.
▸ verb:  (transitive) To repeat with minor variation.
▸ verb:  (transitive) To analyze a prior contentious or embarrassing event.
▸ verb:  (transitive, computing) To recompute the structure of a hash table, taking into account any newly added items.
▸ noun:  Something reworked, or made up from old materials.
▸ noun:  (computing) A recomputation of the structure of a hash table, taking into account any newly added items.

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