Mary Allen
A leaf is flat and thin. You need the expression for different leaves that are like that. We are most likely to think of a part of a plant or a piece of paper. But there are also leaflets or newspapers called “Morgenblatt”, “Tagblatt” and others with similar names. Many animals and humans have a flat bone, the shoulder blade. But there are far more meanings.
Leaves belong to many plants like the roots and trunk. Green chlorophyll allows them to capture the energy of sunlight. They evaporate water and thereby cool the plant. A special leaf is a cotyledon. This is what the first leaf that grows from the seed is called. Most plants have leaves, but not all. Mosses and algae have none.
We often think of a paper that is cut into sheets. There are note sheets, math sheets, and many others. When a leaflet advertises something and the leaflet is distributed free of charge, it’s called a leaflet. Newspapers are also sometimes referred to as sheets. You can still see that in titles such as morning paper, evening paper, daily paper, or weekly paper.
Mammals have a special bone called the scapula. You can easily feel the two shoulder blades with your thumbs on your back or see them through the skin. In mammals, the scapula is triangular, in birds, it is elongated and narrow. Hunters like to take down their prey with a shot near the shoulder blade. So the animal is dead immediately. It is therefore called a target shot.
Helicopters and wind turbines have rotor blades. In colloquial language, we call them wings. The blade of an ax, scythe, or other tool is also called a “blade”. All playing cards that you hold together in your hand are also called that. The moving part of a door is the door leaf. This includes the door frame. There are other things that are called “leaves”.