blue Definition

  • 1having the color of the clear sky or the deep sea
  • 2feeling sad, unhappy, or depressed
  • 3conservative or reactionary in political views

Using blue: Examples

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

  • Example

    She wore a blue dress to the party.

  • Example

    The ocean was a beautiful shade of blue.

  • Example

    He was feeling blue after his breakup.

  • Example

    The politician had blue views on immigration.

blue Synonyms and Antonyms

Phrases with blue

  • unexpectedly and without warning


    The news of her promotion came out of the blue.

  • very rarely; almost never


    I only eat fast food once in a blue moon.

  • feeling sad or depressed


    After her dog died, she was feeling blue for weeks.


Summary: blue in Brief

The word 'blue' [bluː] can refer to the color of the sky or sea, as well as feelings of sadness or depression. It can also describe conservative political views. Phrases like 'out of the blue' and 'once in a blue moon' denote unexpectedness or rarity, while 'feeling blue' means feeling sad or depressed.

How do native speakers use this expression?