informer
/ɪnˈfɔːɹ.məɹ/ 名词 C1中文： 告密者、线人
- One who informs someone else about something.
- A person who tells authorities about improper or illegal activity. · Being an informer often meant living in fear.· The police relied on an informer to catch the gang.
- One who informs, animates, or inspires. · 1729, Alexander Pope, Prologue to Sophonisba (by James Thomson Nature, informer of the poet's art.
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