blue

Of a blue hue.

the deep blue sea

Why is the sky blue?

He was wearing a blue t-shirt.

(informal)Depressed, melancholic, sad.

Đồng nghĩa: miserable, unhappy, atrabiliary, atrabilious, blitheless, dispirited, blue, bummed out, chapfallen, cheerless, chopfallen, crestfallen, cut up, damp, dejected, depressed, despondent, disgruntled, disconsolate, disheartened, dismal, doleful, dolesome, down, down in the dumps, down in the mouth, downcast, downhearted, downsome, dull, elegiac, elegious, forlorn, gloomy, glum, grief-stricken, grieving, heavy-hearted, heartsore, heartsick, inconsolable, infelicitous, jawfallen, joyless, lachrymose, lamentful, low, low-spirited, lugubrious, lumpish, melancholic, melancholy, miserable, moody, mopey, morose, mournful, passionate, plaintive, Plutonian, Plutonic, querulous, ruthful, sad, saddened, saturnine, shattered, solemn, sombre, sorrowful, sorrow-ridden, sorrowsome, spiritless, sullen, threnetic, threnetical, triste, tristful, uncheerful, uncheery, unconsolable, unhappy, unlively, wistful, woe, woebegone, woeful, wretched

Having a bluish or purplish shade to the skin due to a lack of oxygen to the normally deep-red red blood cells; cyanotic.

My hands were blue with cold.

The divers got them out of the car just in time – they were starting to turn blue.

(of a flame) Pale, without redness or glare.

The candle burns blue.

(politics) Supportive of, run by (a member of), pertaining to, or dominated by a political party represented by the colour blue.

(astronomy) Of, dominated by, or shifted toward the higher-frequency, or "bluer", end of the electromagnetic spectrum.

(particle)(particle physics) Having a colour charge of blue.

(of steak) Extra rare; left very raw and cold.

Đồng nghĩa: mooing

(of a dog or cat) Having a coat of fur of a slaty gray shade.

(archaic)Severe or overly strict in morals; gloomy.

blue and sour religionists;  blue laws

(archaic)(archaic, of women) Literary; scholarly; bluestockinged.

(informal)Risqué; obscene; profane; pornographic.

His material is too blue for prime time.

The air was blue with oaths.

a blue movie

(countable, uncountable)(countable and uncountable) The colour of the clear sky or the deep sea; the colour midway between green and violet in the visible spectrum and one of the primary additive colours.

(countable, uncountable)Anything coloured blue, especially to distinguish it from similar objects differing only in colour.

I don't like red Smarties. Have you got a blue?

(countable, uncountable)A blue dye or pigment.

(uncountable)Blue clothing.

The boys in blue marched to the pipers.

(countable, uncountable)The sky, literally or figuratively.

The balloon floated up into the blue.

His request for leave came out of the blue.

(countable, uncountable)The ocean; deep waters.

(countable, uncountable)The far distance; a remote or distant place.

(countable, uncountable)A dog or cat with a slaty gray coat.

(countable, uncountable)(snooker) One of the colour balls used in snooker, with a value of five points.

(countable, uncountable)(entomology) Any of the butterflies of the subfamily Polyommatinae in the family Lycaenidae, most of which have blue on their wings.

(countable, uncountable)A bluefish.

(Australia, colloquial, countable, uncountable)An argument or brawl.

"I had a blue with Dad," said Fay. "He wanted to drive us, I wanted to walk."

(ergative)To make or become blue; to turn blue.

Đồng nghĩa: bluen

(transitive)(transitive, metallurgy) To treat the surface of steel so that it is passivated chemically and becomes more resistant to rust.

(transitive)(transitive, laundry) To brighten by treating with blue (laundry aid).

(Australia, intransitive, slang)To fight, brawl, or argue.

(dated, slang, transitive)To spend (money) extravagantly; to blow.