Distribution:
* Disseminate: To scatter or distribute widely.
* Diffuse: To spread out or become less concentrated.
* Disperse: To scatter or cause to move apart.
* Distribute: To give or deliver something to different people or places.
* Propagate: To spread or transmit something, especially a belief or idea.
Extension:
* Extend: To make something longer or wider.
* Expand: To become larger or more extensive.
* Enlarge: To make something bigger.
* Broaden: To make something wider or more comprehensive.
Coverage:
* Range: The extent to which something covers.
* Scope: The extent of something's influence or application.
* Reach: The extent to which something can be accessed or understood.
Physical spreading:
* Lay out: To spread something out on a surface.
* Unfold: To open or spread out something that was folded.
* Stretch: To make something longer or wider by pulling it.
Other meanings:
* Communicate: To share information or ideas with others.
* Proliferate: To increase rapidly in number or amount.
* Manifest: To show or reveal something clearly.
To choose the best synonym, consider the specific meaning of "spread" in your sentence and the tone you want to convey.