All 3 Uses

corroborate
in
Notes of a Native Son
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When I was around nine or ten I wrote a play which was directed by a young, white schoolteacher, a woman, who then took an interest inme, and gave me books to read and, in order to corroborate my theatrical bent, decided to take me to see what she somewhat tactlessly referred to as "real" plays.†
Subsection 1 *
His sister moaned and this grief-stricken moaning was taken as corroboration.†
Subsection 3
They preferred the invention because this invention expressed and corroborated their hates and fears so perfectly.†
Subsection 3

corroborated = supported

Definitions:

(1) (corroborate)
to support an opinion -- typically with additional evidence or testimony
(2) (meaning too rare to warrant focus)