hypothesise

As a noun hypothesis

is (sciences) used loosely, a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation as a scientific term of art, see the attached quotation compare to theory, and quotation given there.

As a verb hypothesise is

to believe or assert on uncertain grounds.

As verbs the difference between suppose and hypothesise

is that suppose is while hypothesise is to believe or assert on uncertain grounds.

As a verb hypothesise

is to believe or assert on uncertain grounds.

As a noun vibratiuncle is

a minuscule or slight vibration.