General:
* Spread: This is a simple, direct synonym, emphasizing the movement of something throughout a space.
* Infuse: This emphasizes the idea of something being absorbed or incorporated into something else.
* Saturate: This highlights the idea of something being completely filled or soaked with another thing.
* Diffuse: This emphasizes the gradual spreading of something throughout a space.
* Penetrate: This suggests a forceful or deep spread of something.
More Specific:
* Imbue: This emphasizes the idea of something being filled with a particular quality or characteristic.
* Suffuse: This emphasizes the idea of something being covered or filled with something else.
* Infiltrate: This suggests a stealthy or secretive spread.
* Permeate: Similar to "pervade," this emphasizes the idea of something passing through the entire space.
* Embrace: This suggests a complete and encompassing spread.
Figurative:
* Dominate: This emphasizes the idea of something having a powerful influence or control.
* Prevail: This suggests that something is widespread and prevalent.
* Infuse: This emphasizes the idea of something being deeply ingrained.
* Seep: This suggests a gradual and subtle spread.
The best synonym for "pervade" will depend on the specific context of your sentence.