à portes closes (secret)

behind closed doors (o) (secret)

privately (o) (secret)

in private (o) (secret)

a porte chiuse (o) (secret)

in forma privata (o) (secret)

in privato (o) (secret)

en privado (o) (secret)

a puerta cerrada (o) (secret)

hinter verschlossenen Türen (o) (secret)

privat (o) (secret)

im stillen Kämmerlein (o) (secret)

binnenskamers (o) (secret)

privé (o) (secret)

bakom slutna dörrar (o) (secret)

privat (o) (secret)

em particular (o) (secret)

dentro de quatro paredes (o) (secret)

a portas fechadas (o) (secret)