Presumed to be true, but without proof / (with infinitive) Generally considered or expected. / (with infinitive) Having an obligation. / (with infinitive) Intended.

simple past tense and past participle of suppose

(idiomatic) Required to, ought to, expected to / (idiomatic, with not) Permitted to.

Capable of being supposed; imaginable

Able to be supposed or conjectured. / (nonstandard) Supposedly.

plural of supposer

(nonstandard) supposedly

One who supposes.

if hypothetically (optionally followed by that)

(transitive) To take for granted; to conclude, with less than absolute supporting data; to believe. / (transitive) To theorize or hypothesize. / (transitive) To imagine; to believe; to receive as true.