Word/Phrase: ni pio
Translation: not a peep
Pronunciation: ni ˈpjo
I didn't hear a thing - No oí ni pío.
She didn't say a word - Ella no dijo ni pío.
He remained silent during the meeting - Él no dijo ni pío durante la reunión.
The cat didn't make a sound - El gato no hizo ni pío.
They were so quiet, it was as if they didn't exist - Estaban tan callados que era como si no existieran.