| principium(theory, guesstimate, premise) |
| principle(theory, guesstimate, premise) |
| qualification(theory, guesstimate, premise) |
| reasoning(conjecture, presumption, deduction) |
| rough guess(expression, theory, guesstimate, premise) |
| say so(expression, theory, guesstimate, premise) |
| self-evident truth(expression, theory, guesstimate, premise) |
| sine qua non(expression, idiom, theory, guesstimate, premise) |
| smoke |
| sneaking suspicion(expression, theory, guesstimate, premise) |
| speculation(conjecture, presumption, deduction) |
| stab in the dark(expression, idiom, theory, guesstimate, premise) |
| supposal(theory, guesstimate, premise) |
| supposition(theory, guesstimate, premise) |
| surmisal(theory, guesstimate, premise) |
| tentative law(expression, theory, guesstimate, premise) |
| theorem(theory, guesstimate, premise) |
| theorization(theory, guesstimate, premise) |
| theory(guesstimate, premise) |
| thesis(theory, guesstimate, premise) |