a false appearance that makes someone or something seem more pleasant or better than they really are:
“He kept his hostility hidden behind a friendly façade. We are fed up with this façade of democracy”


imitation of a situation or process.
“simulation of blood flowing through arteries and veins”

the action of pretending; deception.
“clever simulation that’s good enough to trick you”


A public service announcement (PSA), or public service ad, is a message in the public interest disseminated without charge, with the objective of raising awareness, changing public attitudes and behavior towards a social issue.


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