1. Assume
2. Conjecture
3. Imagine
4. Postulate
5. Presume
6. Speculate
7. Conclude
8. Consider
9. Hypothesize
10. Reason
11. Believe
12. Intuit
13. Reckon
14. Guess
15. Infer
16. Postulate
17. Anticipate
18. Deduce
19. Forecast
20. Intimate
21. Possibility
22. Suppose
23. Theory
24. Think
25. Venture
26. Wager
27. Accept
28. Assert
29. Contemplate
30. Deem

Searching for synonyms for the word “suppose” can be a difficult task. Finding the best ideas for other words to use can be a challenge. Luckily, there are plenty of synonyms for the word “suppose” that can be used in place of the word itself. Some of the best synonyms for “suppose” include assume, conjecture, imagine, postulate, presume, and speculate. These words can be used interchangeably with “suppose” in order to express the same idea. Other words for “suppose” include conclude, consider, hypothesize, reason, believe, intuit, reckon, guess, infer, postulate, anticipate, deduce, forecast, intimate, possibility, theory, think, venture, wager, accept, assert, contemplate, and deem. With these 30 different words, there are plenty of options to choose from when looking for a synonym for “suppose”.