The word averiguaste is the preterite form of averiguar in the second person singular. There are other translations for this conjugation.
See the full averiguar conjugation

averiguar

¿Alguna vez averiguaste lo que le pasó a tu hermana?
Did you ever find out what happened to your sister?
¿Cómo averiguaste que Paul Spector había estado aquí?
How did you find out Paul Spector had been here?
Rhonda, ¿ya averiguaste cuándo es el partido de fútbol?
Rhonda, did you find out yet, when's the soccer game?
¿No averiguaste nada sobre mi amigo de los cuchillos?
So there was nothing on my friend with the knives?
Necesito saber todo lo que averiguaste sobre ella.
I need to know everything you found out about her.
¿Cómo averiguaste que Victor no había pagado sus cuentas?
How did you find out that Victor hadn't paid his bills?
Mi nombre y dirección, los averiguaste anoche.
My name and address, you found out last night.
Deberías haber venido a mí, cuando lo averiguaste.
You should have come to me when you found out.
¿Así que averiguaste algo sobre ese Tipo Acido?
So did you find out anything about that Acid Guy?
Todo lo que necesito saber es cómo averiguaste
All I need to know is how you figured out
Dijiste que averiguaste el significado del universo.
You said you'd figured out the meaning of the universe.
Entonces, ¿qué averiguaste respecto al Dr. Lambert?
So, what did you find out about Dr. Lambert?
¿No averiguaste su nombre antes de lanzarle por el balcón?
You didn't get his name before you threw him off the balcony?
¿Qué averiguaste de tu amiga Jackie?
What did you find out from your friend Jackie?
Quiere saber lo que averiguaste sobre el recibo rosa.
He wants to know what you found out the pink ticket.
¿Cómo averiguaste que Kats la llevó a casa?
How did you find out Kats took her home?
¿Qué averiguaste sobre los tatuadores de por aquí?
What have you found out about tattoo artists down here?
¿Alguna vez averiguaste qué pasó con las luces?
Um, did you ever figure out what happened to the lights?
Es decir, escucha... No es una cosa buena, lo que averiguaste.
I mean, listen... it's not a good thing, what you found out.
Así que averiguaste que hay otra "A" por ahí.
So you figured out there's another "A" out there.
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