sincerely
[adverb]
Synonyms: honestly, earnestly, genuinely, in earnest, seriously, truly, wholeheartedly

[TahlilGaran] English Synonym Dictionary ▲

sin‧cere‧ly /sɪnˈsɪəli $ -ˈsɪr-/ adverb

1. if you feel or believe something sincerely, you really feel or believe it and are not just pretending Synonym : truly:
I sincerely hope I’ll see her again.
We are sincerely grateful for your help.

2. (yours) sincerely an expression used to end a formal letter, especially one that you have begun by using someone’s name

[TahlilGaran] Dictionary of Contemporary English ▲

sincerely
adverb
See YOURS 1 (yours)

[TahlilGaran] Dictionary of Common Errors ▲