blue
/blu/ verb C2- To make or become blue; to turn blue.
- To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.
- To brighten by treating with blue (laundry aid).
He/she/it blues · Past blued · Past participle blued · -ing form blueing
Verb forms
- Base form
- blue
- He/she/it
- blues
- Past
- blued
- Past participle
- blued
- -ing form
- blueing
From the library
When all the sky is clear and blue,
And be the sky's blue looking-glass;
Up in the air so blue?
And the blue even slowly falls
Other matches
Learn blue in real texts
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