sincerely
adverbUK /sɪnˈsɪəli/
US /sɪnˈsɪrli/
You say it to show you really mean what you say.
She sincerely thanked her friend for helping her.
RELATED WORDS
OTHER MEANINGS
2. In a real and honest way, not pretending.
He sincerely apologized for being late.
3. A polite way to end a formal letter.
Sincerely, your student, Mia.
4. With strong and true feeling.
They sincerely hoped the puppy would find a home.