sincerely

US /sɪnˈsɪr.li/
UK /sɪnˈsɪr.li/
"sincerely" picture
1.

in a sincere or genuine way

:
He sincerely apologized for his mistake.
I sincerely hope you feel better soon.
2.

used as a conventional closing formula in a letter or email

:
Yours sincerely, John Smith.
Please reply soon. Sincerely, Jane Doe.