"To inaugurate" is fairly archaic in American English. We say people get inaugurated in political office, or to inaugurate a new policy. I couldn't tell you exactly what the difference is, but I can't remember the last time I heard someone use the word for anything but a new president.
To say something "launched" implies movement, and a certain element of risk. Its usage is metaphoric, as literally speaking only vessels launch. When you "launch" a new software, you are taking it from its safe harbor (the development team) and putting it out into the dangerous seas (the general public). It used to imply adventure and risk, but is now sufficiently commonplace that people don't normally think of it that way. "Released" is a more neutral word for the same thing.
Ditto Joe. Let me add:
To "enlighten" is to give information or wisdom. To "inspire" is to motivate.
"Enlighten" is rarely used today. But an example of a correct usage is, "I didn't know about the new rules until my boss enlightened me."
Perhaps somewhat more common is the adjective "enlightened", meaning "wise" or "compassionate". Like, "Tsar Alexander considered himself an enlightened monarch."
An example sentence with "inspire" is, "I was inspired to buy a new car by the desire to impress my girlfriend."
They're not really the same thing at all. I could get new information and do absolutely nothing about it, I might just say, "yeah, whatever". I could be inspired without getting any new information. Perhaps someone just encouraged me.
Where they might somewhat overlap is that "inspire" can be used to mean that one idea led to another. Like, "Mr Smith's latest novel was inspired by a story he read in the news." He got some idea or information, and that idea led to another idea.
But I can't think of any sentence where you could substitute "inspire" for "enlighten" or vice versa without significantly changing the meaning.
Best Answer
is used to signify a second but distinct copy, in a double barrel gun, both barrels are operated independently.
implies there is some communication or coordination between the two parts so they act as a single unit even though there are two parts, in the case of duo core processors, there is load balancing. In the case of dynamic duo there is coordination between Batman and Robin.
it seems to be the tradition to usually "count" the number of body parts. It is also the case that the two heads act independently
but of course there are exceptions