What is the collective noun for sails?

There isn't a widely accepted collective noun specifically for sails. However, here are some options you could use:

* Spread: This is the most common and natural option, emphasizing the way sails are deployed.

* Suite: This emphasizes the completeness of the set of sails.

* Canvas: This focuses on the material of the sails.

* Fleet: This is used for a group of ships, but could also be used poetically for a collection of sails.

Ultimately, the best collective noun for sails depends on the context of your writing.