Not really. You could technically address someone as "dear dearest", but it shows a definite lack of imagination.
The plural of dear is dears.
dearer and dearest
dearer and dearest
dearer and dearest
"Dear" in the salutation of a letter is used for everyone, both personal and business acquaintances. Examples: Dear Kayley: "I will be home late for dinner on Thursday." Or, a business example: Dear Mr. Jones: "I appreciate the time and thought you spent on the financial statement." "Dearest," on the other hand, is intended for someone personal and close to you. Example" Dearest Richard: "I miss you very much and will be glad when you return home."
"Dear" in the salutation of a letter is used for everyone, both personal and business acquaintances. Examples: Dear Kayley: "I will be home late for dinner on Thursday." Or, a business example: Dear Mr. Jones: "I appreciate the time and thought you spent on the financial statement." "Dearest," on the other hand, is intended for someone personal and close to you. Example" Dearest Richard: "I miss you very much and will be glad when you return home."
beloved, dear, dearest, honey
No.
she either called him dearest sweetheart dear angel darling alibie
"Two of them have sent" is correct usage.
Dear Mr.Donahuue,
The correct and most used and common one is Dear