Informer vs. Spy

Difference Between Informer and Spy
Informernoun
One who informs someone else about something.
Spynoun
A person who secretly watches and examines the actions of other individuals or organizations and gathers information on them (usually to gain an advantage).
Informernoun
A person who tells authorities about improper or illegal activity.
Spyverb
(intransitive) To act as a spy.
During the Cold War, Russia and America would each spy on each other for recon.Informernoun
One who informs, animates, or inspires.
Spyverb
(transitive) To spot; to catch sight of.
I think I can spy that hot guy coming over here.Informernoun
one who reveals confidential information in return for money
Spyverb
(intransitive) To search narrowly; to scrutinize.
Spyverb
(transitive) To explore; to see; to view; inspect and examine secretly, as a country.
Spynoun
(military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors
Spynoun
a secret watcher; someone who secretly watches other people;
my spies tell me that you had a good time last nightSpyverb
catch sight of
Spyverb
watch, observe, or inquire secretly
Spyverb
secretly collect sensitive or classified information; engage in espionage;
spy for the Russians