1. A covering for the face, worn for protection, disguise, or theatrical purposes
She wore a surgical mask during the pandemic.
Ela usava uma máscara cirúrgica durante a pandemia.
2. A false appearance or pretense; to conceal one's true feelings or intentions
He wore a mask of confidence, but he was actually nervous.
Ele mantinha uma máscara de confiança, mas estava realmente nervoso.