Joe: My dad worked at ACA for 3 years.
Fred: Uhhh, what's ACA?
Joe: It's the Alerting Communicators of America, the siren manufacturer don't you know that?
adv. - aquí, acá, en este momento, en este caso, en esta instancia
int. - ven aquí!, aquí tienes!
adj. - aquí, acá
n. - este lugar, el presente, esta vida
the act of being so shocked that no other word invades your mind. something so appealing has happened and you can’t believe someone would say such a thing.