Leaping
Rapid Progress
noun, verbal noun
To fly and leap is leaping.
飛躍 is mainly used in a figurative way to highlight remarkable progress in areas like personal growth or technological advancement. It can also describe a logic that jumps suddenly from one point to another without clear connections.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼は陰謀論が好きなんですが、彼の論理はよく飛躍するんですよね。
He likes conspiracies, but there is often a leap in his logic.