different between acknowledgement vs corroboration

English

acknowledgement (countable and uncountable, plural acknowledgements)

(most common British spelling, also sometimes used in the US) Alternative spelling of acknowledgment

From Middle English corroboracioun, borrowed from Late Latin corr?bor?ti? (“strengthening”).

corroboration (countable and uncountable, plural corroborations)

The act of corroborating, strengthening, or confirming; addition of strength; confirmation
- 1857, Herman Melville, The Confidence-Man, Chapter 23:
  Fallacious enough doctrine when wielded against one's prejudices, but in corroboration of cherished suspicions not without likelihood.
- September 16 2016, Jonah Goldberg writing in the Baltimore Sun, Hillary's health is a valid issue:
  Social media lighted up with corroborations that lower Manhattan was the meteorological equivalent of the jungles of Borneo.
That which corroborates.

corroboration f (plural corroborations)

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