blue
Having the color of the sky on a sunny day.
Of a color like that of a clear sky or the sea on a sunny day, between green and violet in the visible spectrum.
Feeling sad or not happy.
Feeling or showing sadness or depression.
Supporting the Democratic Party in the US.
Relating to or supporting the Democratic Party in United States politics.
Light or fire that looks blue because it is very hot or has that color.
Of light or flames, having a bluish appearance often due to high temperature or specific wavelength emission.
- Base: blue
- Comparative: blueer
- Superlative: blueest
- Irregular comparative: blueer Adjective
- Irregular superlative: blueest Adjective
blue collar
1Relating to manual labor jobs or workers
About jobs where people work with their hands, not in an office.
- He comes from a blue-collar background.
- Blue-collar workers are essential to the economy.
feel blue
1To feel sad or depressed
To feel sad or not happy.
- I always feel blue on Mondays.
- She felt blue after failing her exam.
out of the blue
1Happening suddenly and unexpectedly
Happening suddenly when you do not expect it.
- He called me out of the blue after ten years.
- The idea came to me out of the blue.
true blue
1Completely loyal and faithful
Always loyal and faithful to someone or something.
- She’s been a true blue friend for years.
- He’s true blue when it comes to his team.
once in a blue moon
1Happening very rarely
Something that happens very rarely.
- We go hiking together once in a blue moon.
- We go out for a fancy dinner once in a blue moon.
- He only eats dessert once in a blue moon.
- He calls me once in a blue moon, so I’m always surprised.
once in a blue moon
2Happens very rarely
Something that happens only on rare occasions.
- We go out for dinner once in a blue moon.
- He only calls me once in a blue moon.
once in a blue moon
3Happening very rarely
Happening only one time in a long time.
- We go out for dinner once in a blue moon.
- He visits his parents once in a blue moon.