Here's a breakdown of the meaning:
* Spread: It suggests that something is not just present in one place but is distributed widely.
* Every part: This signifies that the spread is not partial but encompasses the entirety of something.
* Influence: It hints that the thing spreading has an effect on the thing it is spreading through.
Examples:
* "A sense of unease pervaded the room." (The unease spread throughout the room, affecting everyone present.)
* "The smell of freshly baked bread pervaded the entire house." (The smell was present in every room of the house.)
* "The idea of change pervaded the political landscape." (The idea of change was widespread and had a significant impact on politics.)
"Pervade" often suggests a subtle or pervasive presence, rather than something being physically present in every location. It can also have a slightly negative connotation, as it can imply that something is overwhelming or even suffocating.