Definition of assumption:

• The act or agreement of assuming or taking upon one's self; the undertaking or adoption of a debt or obligation primarily resting upon another, as where the purchaser of real estate " assumes'' a mortgage resting upon it in which case he adopts the mortgage debt as his own and becomes personally liable for its payment. Eggleston v. Morrison, 84 111. App. 631; Locke v. Homer, 131 Mass. 93, 41 Am. Rep. 199; Springer v. De Wolf, 194 111. 218, 62 N. E. 542, 56 L. R. A. 465, 88 Am. St Rep. 155; Lenz v. Railroad Co., Ill Wis. 198, 86 N. W. 607. The difference between the purchaser of land assuming a mortgage on it and simply buying subject to the mortgage, is that in the former case he makes himself personally liable for the payment of the mortgage debt, while in the lat ter case he does not. Hancock v. Fleming, 103 Ind. 533, 3 N. E. 254; Braman v. Dowse, 12 Cush. ( Mass.) 227. Where one " assumes" a lease, he takes to himself the obligations, contracts, agreements, and benefits to which the other contracting party was entitled under the terms of the lease. Cincinnati, etc., R. Co. v. Indiana, etc., R. Co., 44 Ohio St. 287, 314, 7 N. EX 152.
• celebration of the Virgin Mary's being taken up into heaven when her earthly life ended
• the act of taking possession of or power over something; " his assumption of office coincided with the trouble in Cuba"; " the Nazi assumption of power in 1934"; " he acquired all the company's assets for ten million dollars and the assumption of the company's debts"
• audacious ( even arrogant) behavior that you have no right to; " he despised them for their presumptuousness"
• a hypothesis that is taken for granted; " any society is built upon certain assumptions"
• ( Christianity) the taking up of the body and soul of the Virgin Mary when her earthly life had ended
• Arrogance.
• The act of assuming, or taking to or upon one's self; the act of taking up or adopting.
• The act of taking for granted, or supposing a thing without proof; supposition; unwarrantable claim.
• The thing supposed; a postulate, or proposition assumed; a supposition.
• The minor or second proposition in a categorical syllogism.
• The taking of a person up into heaven.
• A festival in honor of the ascent of the Virgin Mary into heaven.
• Act of assuming: a supposition.
• The act of assuming; something taken for granted; a supposition.
• An assuming; a supposition.
• The act of assuming; the thing, often the postulate or proposition, assumed; the minor proposition in a categorical syllogism; the taking up a person into heaven; in particular a festival of the Romish and Greek Churches, celebrated in honour of the miraculous ascent of the Virgin Mary to heaven.
• The act of assuming; supposition; the taking up into heaven, applied to the Virgin Mary.

Usage examples for assumption

1. " With your assumption that a large dose of electricity will merely increase the effect of a small dose.  Round the Red Lamp Being Facts and Fancies of Medical Life by Arthur Conan Doyle

2. Notwithstanding which assumption, I should like to hear you say it.  Hills of the Shatemuc by Susan Warner

3. Alice was always angered by any assumption that her conduct to Mr. Grey had been affected by the advice or influence of her cousin Kate.  Can You Forgive Her? by Anthony Trollope

4. We shall by all means all of us go to the Cathedral of the Assumption.  Fables for Children, Stories for Children, Natural Science Stories, Popular Education, Decembrists, Moral Tales by Leo Tolstoy