belief, speculation
● Presumption
● Conjecture
● Inference
● Hunch
● Prediction
● Supposition
● Theory
● Assumption
● Hypothesis
● Opinion
● Guesswork
● Feeling
● Judgment
● Conclusion
● Deduction
● Surmise
● Shot
● Postulate
● Presupposition
● Notion
● Postulation
● Suspicion
● Fancy
● Thesis
● Stab
● Estimate
● Reckoning
● Induction
● Divination
● View
● Ballpark figure
● Shot in the dark
● Guesstimate
● Supposal
● Sneaking suspicion
● Calculation
● Certainty
● Proof
● Fact
● Truth
● Measurement
● Knowledge
● Reality
● Surmisal