adv
sincerely
sihn-SEER-lee
adv
1
In a genuine, heartfelt manner.
"She sincerely hopes the project succeeds."
2
A standard closing phrase used before a signature in a letter or email.
"The email ended with "Sincerely, John.""
How to Use Sincerely
Learner’s notesIn plain EnglishGenuinely; also the standard sign-off before your name in formal letters.
UK vs US
Both British and American writers use "Sincerely" as a letter closing, though British formal letters more often use "Yours sincerely" (when addressed by name) or "Yours faithfully" (when not).
Word Forms
more sincerely comparative, most sincerely superlative
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She _____ hopes the project succeeds.