informer
noun 3
Definitions
noun
1
One who informs someone else about something.
2
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.
3
One who informs, animates, or inspires.
1729, Alexander Pope, Prologue to Sophonisba (by James Thomson Nature, informer of the poet's art.
Your note
not saved0 chars