A suitable word to replace "termination" on an application could be "conclusion" or "cessation." Both terms convey the idea of ending something without the negative connotations that "termination" may carry. Depending on the context, "completion" might also be appropriate.
Demonstration
Another way to say "end" is "conclusion." Other synonyms include "termination," "finish," or "closure," depending on the context in which you are using the word.
Computers: Software, application The world: Event, activity
App, program, executable, (only for .exes though) etc...
The word and can be replaced by the ampersand (&) or by the phrase "as well as"; there is no single word that replaces it, however.
Fired or sacked
App, software, program. There are several words to replace application. My appologies if you were looking for 'the application of'.
Programme
Thy?
switched or another one
Another word for dmand is ask with force.
existing
Demonstration
One such word is resume.
Obsessed is another word that can replace addicted.
replacement
Women