Blue
Part of speech: adjective
Definition: Having a color shade close to blue. Depressed, melancholic, sad. Pornographic. Supportive of, run by, or dominated by the Democratic Party. Of the higher-frequency region of the part of the electromagnetic spectrum which is relevant in the specific observation. Extra rare; left very red and cold.
Part of speech: noun
Definition: The colour of the clear sky or the deep sea, between green and violet in the visible spectrum, and one of the primary additive colours for transmitted light; the colour obtained by subtracting red and green from white light using magenta and cyan filters. A blue dye or pigment. Bluing. Blue clothing A blue uniform. See blues. The sky, literally or figuratively. The ocean; deep waters. Anything blue, especially to distinguish it from similar objects differing only in color. One of the colour balls used in snooker with a value of 5 points. A bluefish. An argument. A liquid with an intense blue colour, added to a laundry wash to prevent yellowing of white clothes. a type of firecracker in the imagination of the person who wrote this entry.
Part of speech: verb
Definition: To make or become blue. To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.
Example sentence: Blues is a tonic for whatever ails you. I could play the blues and then not be blue anymore.
Indigo
Part of speech: adjective
Definition: Having a deep blue colour.
Part of speech: noun
Definition: A purplish-blue colourA blue dye obtained from certain plants (the indigo plant or woad), or a similar synthetic dye.