Read the example sentence and study the chart of word parts.

The author decided to include an omniscient narrator in order to share the thoughts and feelings of each character throughout the novel.

What is the definition of omniscient?

the state of knowing everything
the state of recognizing people
the state of moving one’s eyes
the state of detecting movement

The state of knowing everything

(to further explain when it comes to third person narration there are three main types of narrators:
-objective: the narrator acts an observer, we don’t learn about any characters’ feelings or inner thoughts
-limited: the story is told from one of the characters’ perspective and we get to to know their thoughts and feelings
-omniscient: the narrator knows everything about all the characters, including all their thoughts and feelings)

hope this helps :)