Up*set" (?), v. t. 1. To set up; to put upright. [Obs.] "With sail on mast upset." R. of Brunne.

2. (a) To thicken and shorten, as a heated piece of iron, by hammering on the end. (b) To shorten (a tire) in the process of resetting, originally by cutting it and hammering on the ends.

3. To overturn, overthrow, or overset; as, to upset a carriage; to upset an argument. "Determined somehow to upset the situation." Mrs. Humphry Ward.

4. To disturb the self-possession of; to disorder the nerves of; to make ill; as, the fright upset her. [Colloq.]

Up*set", v. i. To become upset.

Up"set` (?), a. Set up; fixed; determined; -- used chiefly or only in the phrase upset price; that is, the price fixed upon as the minimum for property offered in a public sale, or, in an auction, the price at which property is set up or started by the auctioneer, and the lowest price at which it will be sold.

After a solemn pause, Mr. Glossin offered the upset price for the lands and barony of Ellangowan.

Up"set`, n. The act of upsetting, or the state of being upset; an overturn; as, the wagon had an upset.

Up*set", v. t. (Basketwork) To turn upwards the outer ends of (stakes) so as to make a foundation for the side of a basket or the like; also, to form (the side) in this manner.

Up*set" (?), v. t. 1. To set up; to put upright. [Obs.] "With sail on mast upset." R. of Brunne.

2. (a) To thicken and shorten, as a heated piece of iron, by hammering on the end. (b) To shorten (a tire) in the process of resetting, originally by cutting it and hammering on the ends.

3. To overturn, overthrow, or overset; as, to upset a carriage; to upset an argument. "Determined somehow to upset the situation." Mrs. Humphry Ward.

4. To disturb the self-possession of; to disorder the nerves of; to make ill; as, the fright upset her. [Colloq.]

Up*set", v. i. To become upset.

Up"set` (?), a. Set up; fixed; determined; -- used chiefly or only in the phrase upset price; that is, the price fixed upon as the minimum for property offered in a public sale, or, in an auction, the price at which property is set up or started by the auctioneer, and the lowest price at which it will be sold.

After a solemn pause, Mr. Glossin offered the upset price for the lands and barony of Ellangowan.

Up"set`, n. The act of upsetting, or the state of being upset; an overturn; as, the wagon had an upset.

Up*set", v. t. (Basketwork) To turn upwards the outer ends of (stakes) so as to make a foundation for the side of a basket or the like; also, to form (the side) in this manner.

• (uncountable) Disturbance or disruption
        My late arrival caused the professor considerable upset.
  
• (countable) An unexpected victory of a competitor that was not favored.
       The Nimrods defeated the Blue Devils yesterday in a stunning upset.
  
• To make (a person) angry, distressed, or unhappy.
       I'm sure the bad news will upset him, but he needs to know.
  
• To disturb, disrupt or adversely alter (something).
       Introducing a foreign species can upset the ecological balance.
  
• To tip or overturn (something).
  
• Of a person, angry, distressed or unhappy.