The palate is (1) the roof of the mouth, and (2) the sense of taste, and it’s also a fancy word for flavor, especially in writing on food wine.
A palette is the board painters use to hold and mix their colors. By extension, it sometimes denotes the range of colors used in a design or work of art.
Pallet usually refers to a platform used for moving cargo or freight, but the word has several other rare definitions in industry and shipping.
Examples
The snaptastic house-made sausage sported a fresh jalapeno and lime aioli that perked and cleansed the palate. [Chicago Sun-Times]
The 18-month-old has been in the operating theatre at the Royal Children’s Hospital three times since his birth to repair his cleft lip and palate. [Herald Sun]
Rosy-toned table linens, napkin rings and utensils sweeten up a palette heavy on black and gold. [Globe and Mail]
A thousand hues of green, a patina of browns and a palette of every colour we know. [Guardian]
Then it is dried, wrapped in plastic, placed atop a pallet, and driven northeast on Interstate 59. [The Atlantic]
The shipment had been rejected by a company because of damage in shipping, one pallet showing a number of boxes crunched on one side. [Herald Mail]