It's SINCERELY. Here are some sentences.
sincerly do your work
yall sincerly miley yall sincerly miley yall sincerly miley
Sincerly
The correct phrase is "sincerely yours," with the word "sincerely" spelled with an "e" before the "ly."
sincerly,________
True. sincerly a kennesaw owl
sincerly. Selena Gomez sincerly. Selena Gomez
because that is their known shape and the queen bee likes that shape ,sincerly bee expert
Sincerly, AwesomeAnswers25
IT HURTS LIKE HELL!!!!!!!!!! sincerly gay man
sincerly, Icarlymaniac
it means you are making a closeing in a letter