A salutation is a greeting used in a letter or other text (email, SMS, etc). Salutations can be formal or informal. The most common form of salutation in a letter is Dear followed by the recipient’s given name or titles‏‎.

For each style of salutation there is an accompanying style of complimentary close, known as valediction.
Examples
These are common pairings of salutations and valedictions.

This…