Sigilo (en. Stealth)
/siˈxilo/
Slang Meanings
Doing things secretly.
That meeting was held in total stealth.
Esa reunión se hizo en sigilo total.
Being involved in something without others knowing.
She was involved in the plan, but she kept it in stealth.
Ella estaba involucrada en el plan, pero lo mantuvo en sigilo.