sincerely
US /sɪnˈsɪr.li/
UK /sɪnˈsɪr.li/

1.
2.
atenciosamente, cordialmente
used as a conventional closing formula in a letter or email
:
•
Yours sincerely, John Smith.
Atenciosamente, John Smith.
•
Please reply soon. Sincerely, Jane Doe.
Por favor, responda em breve. Atenciosamente, Jane Doe.