This is the 123rd most frequent Portuguese word.
fora
"Fora" means "outside" or "out" in English.
Here, 'fora' is used as an adverb to indicate location ('outside').
Ela deixou as chaves fora de casa.
She left the keys outside the house.
In this case, 'fora' implies being excluded from a group or event.
Espero que você não fique fora da festa.
I hope you don't stay out of the party.
Here, 'fora' is part of the idiomatic expression 'fora de si,' which conveys the idea of being mentally distressed or shocked.