To pretend or fake something
Encoding Strategies:
linguistic

feign
to fake
+
-ir
verb suffix
Fingir means to pretend and is a cognate of the English word feign0: to fake a feeling or situation, like feigning ignorance.
fingir
to pretend, to feign, to fake
To fake a feeling, or to pretend that something is true.
Fingió que no me había vistoHe pretended he hadn't seen me
Fingió indiferencia cuando escuchó la noticiaShe feigned indifference when she heard the news
to imitate, to put on (a voice)
Faking a voice or accent that isn't yours.
Fingió la voz de su jefe en la llamadaHe imitated his boss's voice on the call
Finge un acento británico cuando actúaShe puts on a British accent when she acts
fingirse
to pretend to be
The reflexive means you fake yourself, so what follows is what you pretend to be.
Se fingió dormida para no abrir la puertaShe pretended to be asleep so she wouldn't have to answer the door
Se fingió médico para entrar al hospitalHe pretended to be a doctor to get into the hospital