Definition

A unit of instruction or teaching; also, a significant experience or event from which one derives practical knowledge or understanding.

Example Usage

The startup's failure was a harsh lesson about the importance of market research before launching a product.

Origin

From Latin 'lectio', meaning 'reading' or 'a thing read', which evolved to mean 'something taught' in Middle English.

Fun Fact

In medieval times, 'lesson' referred specifically to a passage read aloud from scripture during religious services, before broadening to mean any teaching.

Source: Definition backfill (hailey)

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