The meaning of the term functionality is that an object of any kind is well suited to properly function and work for the purpose the object was created for.
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
I believe that the word you are looking for is "functionality."
What is the meaning of the term "arms race
What is the meaning of the term "arms race
The term is Brevis, meaning shortest.
Flexion is the medical term meaning bending
Sensation is the medical term meaning feeling.
Sort of joke (or figurative speech) of your teacher, the meaning is: programs with similar/related functionality. They are: interpreter, assembler.
Aplasia is the medical term meaning absence of development.
Eructation is the medical term meaning burping.eructation
Metastasize is the medical term meaning "to spread."