Dye is a substance that's used to change the color of whatever it's applied to. You can use hair dye to change your light brown hair to deep, dark purple.

Dye is used on fabrics, hair, yarn and other fibers, clothing, and food, among other things. When you apply dye to something, you dye it. If you're baking a birthday cake for your friend who loves the color orange, you might use food coloring — a type of dye — to dye the vanilla frosting orange. The Old English root of dye is deah, "a color or hue," which is possibly related to deagol, "secret, hidden, or dark."

Definitions of dye

n a usually soluble substance for staining or coloring e.g. fabrics or hair

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acid dye
dye in which the chromophore is part of a negative ion
alizarin yellow
any of various yellow dyes; not related chemically to alizarin but applied in the same manner
anil, indigo, indigotin
a blue dye obtained from plants or made synthetically
aniline dye
any of many dyes made from aniline
azo dye
any dye containing one or more azo groups
basic color, basic colour, basic dye
a dye that is considered to be a base because the chromophore is part of a positive ion
blue, blueing, bluing
used to whiten laundry or hair or give it a bluish tinge
bromophenol blue, bromphenol blue, tetrabromo-phenolsulfonephthalein
a dye used as an acid-base indicator
bromothymol blue, bromthymol blue
a dye used as an acid-base indicator
a red dyestuff consisting of dried bodies of female cochineal insects
cyanine dye
any of a class of dyes containing a -CH= group linking two heterocyclic rings containing nitrogen; used as sensitizers in photography
direct dye, substantive dye
dye with a high affinity for cellulose fibers (cotton or rayon etc.)
fluorescein, fluoresceine, fluorescent dye, resorcinolphthalein
a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
any of various fluorescent substances used in fluorescence microscopy to stain specimens
hair coloring, hair dye
a dye or tint for the hair
Kendal, Kendal green
a green dye, often used to color cloth, which is obtained from the woad plant
lac dye
scarlet dye like cochineal; extracted with alkali from stick lac
lead acetate, sugar of lead
a poisonous white solid (Pb[CH3CO]2) used in dyeing cotton and in making enamels and varnishes
archil, cudbear, orchil
a purplish dye obtained from orchil lichens
a yellow dye made from the bark of the quercitron oak tree
radiopaque dye
dye that does not allow the passage of X rays or other radiation; used to outline certain organs during X-ray examination
saffranine, safranin, safranine
any of a class of chiefly red organic dyes
Tyrian purple
a red-purple to deep purple dye obtained from snails or made synthetically
vat color, vat dye
a water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton
a blue dyestuff obtained from the woad plant
metallized dye
acid dye in which the negative ion contains a chelated metal atom
congo red
a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)
methyl orange
an azo dye used as an acid-base indicator; used for titrations involving weak bases
bromeosin, eosin
a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures
fluorescein isocyanate, fluorescein isothiocyanate
a fluorochrome commonly conjugated with antibodies for use in indirect immunofluorescence
a reddish brown dye used especially on hair
a liquid preparation used on wet hair to give it a tint
a purplish red water-soluble dye used in microscopy
Type of:
color, coloring material, colour, colouring material
any material used for its color

v color with dye

“Please dye these shoes”
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give the color and appearance of bronze to something
color for microscopic study
dye thoroughly
impress, yarn-dye
dye (fabric) before it is spun
color with a liquid dye or tint
fast dye
dye with fast colors
double dye
dye twice
dye by hand
dye after weaving
ebonise, ebonize
stain black to make it look like ebony
stain an object by immersing it in a liquid
dye after knotting the fabric to produce an irregular pattern
dye with wax
stain (skin) with indelible color
paint or stain like marble
make a veinlike pattern
Type of:
color, colour, discolor, discolour
change color, often in an undesired manner

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