people who provide information, especially those who give details to authorities, researchers, or journalists about activities or events.
From Latin 'informans,' present participle of 'informare' (to form, shape, instruct). The word evolved from meaning 'one who informs' or 'teaches' to specifically mean 'one who provides intelligence.' It gained modern connotations in espionage and law enforcement contexts.
The word 'informant' reveals shifting power structures: it started as meaning 'teacher' but now often means 'spy' or 'witness'—language tracks how we've become suspicious of information and those who share it. Your relationship with an informant depends entirely on which side you're on!
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