noun the taking of a person up into heaven.
2. assumption ·noun the minor or second proposition in a categorical syllogism.
3. assumption ·noun a festival in honor of the ascent of the virgin mary into heaven.
4. assumption ·noun the thing supposed; a postulate, or proposition assumed; a supposition.
5. assumption ·noun the act of assuming, or taking to or upon one's self; the act of taking up or adopting.
6. assumption ·noun the act of taking for granted, or supposing a thing without proof; supposition; unwarrantable claim.