Feces is what living creatures cannot digest and then pass out of the intestines. In humans, feces is also called "stool" because sitting on the toilet is like sitting on a chair. Getting rid of the feces is therefore defecation. In colloquial language, there are many different expressions for this, depending on the region. The technical term for it is feces. Feces and urine together are excrement. Translated with www.DeepL.com/Translator (free version)
Originally, feces meant all the dirt that lay on the streets. In the Middle Ages, people simply threw the excrement from the chamber pot onto the street and waited for the rain to wash it away. Even today, every car has a mudguard above each tire. This is a sheet of metal roughly in the shape of a wing. The purpose was to prevent the excrement or simply the dirt from the roads from splashing all over the place when driving over it.
With many animals one speaks of "manure". This applies especially to animals with hooves, i.e. horses, cows and camels. When the animals are in a stable and there the manure mixes with straw, it becomes dung. To prevent the animals in the barn from getting sick from their own manure, the barn must be mucked out regularly. This involves collecting the straw soiled with manure with a pitchfork and replacing it with new, clean straw.
Feces consists mainly of the remains of food that the body could not digest and water, so that it forms a soft mass. About a quarter of the feces is bacteria, which it needs for digestion. Feces can be different colors and also different softness. This is mainly because of what you have just eaten. Different diseases can also change the feces. If the feces is very soft and almost liquid, it is called diarrhea. If, on the other hand, you cannot go to the bathroom at all for several days, this is called constipation. If both cases occur longer or more frequently, you should visit a doctor.