casualidad
/kaswaliˈdad/ · B1 · noun · f
probability
🎲🍀 casual + -idad (-ity): in Spanish, casual means by chance, not relaxed
From Latin casus, a fall: how things happen to fall out. Spanish casual means accidental, so ¡qué casualidad! means what a coincidence! Watch out: it is not casualty, which is víctima.