Point Of An Argument
noun
The point to my theory is the point of an argument. That's what I'm trying to say in my theory / argument, man!
ろんし
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼の話の論旨があまりに不明瞭だったので、苛々しました。
I got frustrated because the point of his story was very vague.