1. Origin
2. Fountain
3. Originator
4. Root
5. Fount
6. Basis
7. Wellspring
8. Foundation
9. Spring
10. Starting Point
11. Well
12. Beginnings
13. Starting Place
14. Source of Supply
15. Fount of Supply
16. Provider
17. Generator
18. Initiator
19. Initiating Point
20. Prime Mover
21. Prime Source
22. Origin Point
23. Point of Departure
24. Starting Point
25. Root of Supply
26. Origin of Supply
27. Origin of Origin
28. Source of Origin
29. Source of Information
30. Source of Knowledge

Finding the best synonyms for the word “source” can be a challenge. Whether you’re looking for another word for source, other words for source, or just ideas for different words to use, the list above can provide you with the perfect solution. From origin to fountain, and foundation to wellspring, you’ll have no trouble finding the perfect synonym for your writing. Whether you’re looking for a more formal or informal word, this list of 30 synonyms for source has you covered.