Question

Should we say in letter dear uncle

Answer 1

Hi friend....
Your letter is an informal letter hence we can start the letter with DEAR UNCLE

Answer 2

$\huge \bigstar \red{answer}$

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we use Dear Sir/Madam vs. in this situation we use dear sir,mam and not to whome it may concern. Dear Sir or Madam implies that you have one specific person in mind for this letter, but do not know their name, title, or gender.

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