What does ous suffix change a noun to?

The suffix "-ous" does not change a noun into anything. It's actually an adjective suffix!

Here's how it works:

* "-ous" is added to a noun to create an adjective.

* The adjective describes something that has the quality or characteristic of the noun.

Examples:

* Noun: Danger --> Adjective: Dangerous

* Noun: Glory --> Adjective: Glorious

* Noun: Venom --> Adjective: Venomous

Let me know if you have any other questions!