a coincidence
No era más que una coincidencia.
It was nothing more than a coincidence.
Me pregunto si verdaderamente se trataba de una coincidencia.
I wonder if it was truly a coincidence.
That's a coincidence.
It was a coincidence.
Si usted se llama Oscar puede ser una coincidencia, ¿no?
If your name is Oscar, it might be a coincidence, right?
— Las noches de Cabiria (1957)
Tom no cree que sea una coincidencia.
Tom doesn't think it's a coincidence.
We have a match.