HYPOTHESIS

1. Theory
2. Proposal
3. Guess
4. Notion
5. Premise
6. Supposition
7. Postulate
8. Conjecture
9. Assumption
10. Speculation
11. Presumption
12. Inference
13. Proposition
14. Presupposition
15. Deduction
16. Concept
17. Premiss
18. Preconception
19. Ideation
20. Belief
21. Guessing
22. Postulation
23. Ideation
24. Notion
25. Speculating
26. Concluding
27. Conjecture
28. Postulant
29. Assumptive
30. Notional

When you’re looking for another word for “hypothesis”, you want to find the best ideas to express your thoughts. There are a variety of synonyms that you can use, such as “theory”, “proposal”, “guess”, “notion”, “premise”, “supposition”, “postulate”, “conjecture”, “assumption”, “speculation”, “presumption”, “inference”, “proposition”, “presupposition”, “deduction”, “concept”, “premiss”, “preconception”, “ideation”, “belief”, “guessing”, “postulation”, “ideation”, “notion”, “speculating”, “concluding”, “conjecture”, “postulant”, “assumptive”, and “notional”. All of these words are great options to use instead of “hypothesis”, and can help you express your ideas clearly.

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