It's called a finial.
To use a needle and thread could be called sewing.To use a needle and thread could be called quilting. To use a needle and thread could be called embroidery. To use a needle and thread could be called suturing.
the holder of a thread is called a spool
The process of creating a thread is called "thread spinning." This involves passing fibers through a spinning machine to twist and bind them together to form a continuous strand of thread.
No. A thread is a part of a process, but a process can not be part of a thread. Processes are always "at the top."
tl;dr: They're called threads because thread is an apt metaphor. When you start a thread, you rely on the operating system to allocate processing time so that your thread can execute. While your thread is executing, the processor (or core) is placing all of its attention on your thread.
If it's a screw base, it's a thread. A thread is an inclined plane in circular form.
Thread
Execution context within a process is called Thread. Threads run, process does not. Every process starts with one thread.
Thread like structures in fungi are called hyphae .
Some times needle point is done with a thick yarn, not sure if embroidery yarn is what it's called but there is embroidery thread which is more commonly used in cross stich and making friend ship bracelets.
A particular length of thread or yarn conforming to the kind of fiber is called a hank. For linen, it is 274 meters (300 yards). For cotton, a hank is 768 meters (840 yards).