A written or printed communication addressed to a person or organization.

The characters of the alphabet.

अक्षर

English Usage: The letter 'b' is the second letter of the alphabet.

Hindi Usage: 'ब' अक्षर, वर्णमाला का दूसरा अक्षर है।

To write a letter.

पत्र लिखना

English Usage: I will letter my grandmother this weekend.

Hindi Usage: मैं इस सप्ताहांत अपनी दादी को पत्र लिखूंगा।