The Grammar Vault / Reference

Collaborate vs. Corroborate

Two people assemble a model bridge beside a picture of the bridge.

To collaborate is to work with others on a shared task. To corroborate a claim or account is to support it with additional evidence.

Follow the two verbs through one project

  • Collaborate. Two volunteers collaborated on an exhibit about the town’s old footbridge. They worked on the exhibit together.
  • Corroborate. A dated photograph corroborated their claim that the footbridge was open by May. The photograph backed up the claim.

Check what comes after the verb

People often collaborate with someone or collaborate on something. With corroborate, the account, claim, or finding is usually the direct object.

Evidence can support one detail in an account. For how someone draws a conclusion from evidence, see Imply vs. Infer.

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