What do you mean by sincerity?

Your sincerity literally means that you are loyal. Yours sincerely is the most common honorific and polite expression at the end of English letters, which can be used in both formal and semi-formal letters. Note that the first letter at the end should be capitalized and a comma should be added at the end. If you want to distinguish the ending words according to the recipient, you can use serious yours, your serious or serious for the close counterparts.

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Sincerely? Advertising. 1. Sincere, sincere and frank.

Before signing at the end of a formal letter, you are sincere, sincere and sincere when the recipient's name is used at the beginning of the letter.

Yours Pronouns yours, yours.