Five grains: rice, millet, millet, wheat, and beetroot.
Five flavors: sour, sweet, bitter, spicy and salty.
Five colors: refers to the five colors of green, yellow, red (red), white and black, that is, black and white plus the three primary colors.
Hardware: five metals: gold, silver, copper, iron, and tin.
The Five Classics: "Poetry", "Book", "Yi", "Rites" and "Spring and Autumn".
The five internal organs: heart, lungs, liver, spleen, and kidneys.
Five ethical relationships: five kinds of human relationships: monarch and minister, father and son, brothers, husband and wife, and friends.
Five spices: fennel, pepper, aniseed, cinnamon, cloves and other five main spices.
Five elements: wood, fire, earth, metal, and water.
The five tones: Jiao, Zheng, Gong, Shang, and Yu, five tones. Extended information
There are many different opinions about "grains" in ancient times, the most important of which are two:
What did the term "grains" refer to when it was originally coined? , no records were left.
The earliest explanation we can see now was written by people from the Han Dynasty.
There are two main interpretations by the Han people and people after the Han Dynasty:
One is rice, millet, millet, wheat, and bean (i.e. soybean).
Another way of saying it is hemp (referring to cannabis), broomcorn millet, millet, wheat, and bean sprouts.
The difference between these two statements is that one has rice but no hemp, and the other has hemp but no rice.
Although hemp seeds can be eaten, their fibers are mainly used to weave cloth.
Grain refers to grain. The former statement does not include hemp among grains, which is more reasonable.
Baidu Encyclopedia-Five Grains