Definify.com
Webster 1913 Edition
Supposition
Supˊpo-si′tion
,Noun.
1.
The act of supposing, laying down, imagining, or considering as true or existing, what is known not to be true, or what is not proved.
2.
That which is supposed; hypothesis; conjecture; surmise; opinion or belief without sufficient evidence.
This is only an infallibility upon
supposition
that if a thing be true, it is imposible to be false. Tillotson.
He means are in
supposition
. Shakespeare
Webster 1828 Edition
Supposition
SUPPOSI'TION
,Noun.
1.
The position of something known not to be true or not proved; hypothesis. This is only an infallibility upon supposition that if a thing be true, it is impossible to be false.
2.
Imagination; belief without full evidence.