<span>Is
this for public speaking, giving a lecture, or oral presentations in general?
If so, it is important to not make excuses and apologies because there is a
danger that the audience might affirm to what you’re saying as well as see you
as someone who lacks credibility.</span>
Answer: The right answer is<em> magnum opus</em>, in singular, and <em>magna opera</em>, in plural.
Explanation: Just to elaborate a little on the answer, it can be added that <em>magnum opus</em> literally means "great work," and it is an expression used to describe a literary piece, a musical composition, a painting, a film, or other example of artistic creativity and genius that stands as the best and most important achievement of its creator.
Things you see in the Bible are hell, Creator, Cain and Abel. I think the main allusion is the section about Cain and Able. It's a well known Bible story about a guy who kills his brother out of jealousy. (the first murder) Cain was banished from the garden of Eden for his sin.
In my opinion, you can use it to define words and find more suitable words (they usually have a thesaurus built into the definition), and find words that seem more elegant or mature.
Answer:
Usefulness or uses
Explanation:
Makes sense grammatically and logivally.
