A reddish-brown color.
A similar substance based on another metal (usually with qualification, such as "copper rust").
A disease of plants caused by a reddish-brown fungus.
Damage caused to stamps and album pages by a fungal infection.
The deteriorated state of iron or steel as a result of moisture and oxidation.
To (cause to) degenerate in idleness; to make or become dull or impaired by inaction.
To oxidize, especially of iron or steel.
To cause to oxidize.
To be affected with the parasitic fungus called rust.
Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight.
An orange-yellow colour, the colour of a lion's pelt.
A spice (seasoning) and colouring agent made from the stigma and part of the style of the plant, sometimes or formerly also used as a dye and insect repellent.
The plant Crocus sativus, a crocus.
To add saffron to (a food), for taste, colour etc.
To dye (a fabric, garment, etc.) with a saffron-based dye.
To give a saffron colour to (something).
To colour (a metal or wooden surface) with a gilding product containing saffron.
To embellish.
Having an orange-yellow colour.