Concept 1 of 3
Informal vs formal letter
Informal: friend or family. Greeting: Dear Mira,. Closing: Yours lovingly.
Formal: school, business, officials. Greeting: Dear Sir/Madam,. Closing: Yours faithfully/sincerely.
Example
Letter to grandma → informal. Letter to school principal → formal.
💡 Tip:Tone matches the relationship. Friend = chatty. Official = polite and precise.