For physical substances:
* Substance: (more formal)
* Stuff: (informal, often for fabric)
* Matter: (general term, can be abstract)
* Fabric: (specifically for cloth)
* Commodity: (something bought and sold)
* Resource: (something that can be used)
* Ingredients: (components of a mixture)
* Composition: (the makeup of something)
* Element: (a basic component)
* Components: (parts that make up a whole)
For information or subject matter:
* Content: (the information contained in something)
* Subject: (the topic being discussed)
* Theme: (a recurring idea)
* Data: (factual information)
* Evidence: (information that supports a claim)
* Facts: (verifiable information)
* Topic: (a specific area of study)
* Matter: (a topic or subject)
For importance or relevance:
* Relevant: (having significance to the situation)
* Significant: (having importance)
* Important: (having great value)
* Essential: (absolutely necessary)
* Crucial: (of vital importance)
* Valuable: (having worth)
* Meaningful: (having significance)
For the act of providing:
* Supply: (provide something)
* Furnish: (provide something)
* Provide: (make something available)
* Offer: (present something for consideration)
It's important to choose the synonym that best fits the context of your sentence.