letter Definition

  • 1a written or printed communication addressed to a person or organization and usually transmitted by mail
  • 2a character representing one or more of the sounds used in speech; any of the symbols of an alphabet

Using letter: Examples

Take a moment to familiarize yourself with how "letter" can be used in various situations through the following examples!

  • Example

    I received a letter from my friend yesterday.

  • Example

    She wrote a letter of complaint to the company.

  • Example

    The word 'cat' has three letters.

  • Example

    He is an expert in the letter 'A'.

letter Synonyms and Antonyms

Phrases with letter

  • capital letter

    an uppercase letter, as distinguished from a lowercase letter


    The first word of a sentence should always begin with a capital letter.

  • letters that are printed, not written in cursive


    Please write your name in block letters.

  • red-letter day

    a day that is memorable or important for some reason


    The day she got her promotion was a red-letter day in her life.

Origins of letter

from Old English 'letter', meaning 'an alphabetic character'


Summary: letter in Brief

The term 'letter' [ˈlɛtər] refers to a written or printed communication addressed to a person or organization, usually sent by mail. It can also refer to a character representing a sound in speech. Examples include 'I received a letter from my friend yesterday,' and 'The word 'cat' has three letters.' Phrases include 'capital letter,' 'block letters,' and 'red-letter day.'

How do native speakers use this expression?