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Related to set against: On a par, give it a shot, run an errand, pay a visit
set something against someone or something
1. to place or lean something against someone or something. Dave set the chair against Fred and had to move it away. I set the rake against the side of the house.
2. to make someone hate or oppose someone or something. His second wife set him against his former in-laws. The Civil War set brother against brother.
set somebody/something against somebody/something
to cause one person or group to oppose another His health-care plan would divide older Americans and set senior against senior. The disagreement has turned into a public feud that has set members against each other.
Be or cause someone to be opposed to, as in Civil wars often set brother against brother, or The police chief's critics were set against his officers. [Late 1200s] Also see dead set against.
1. To place something so that it is touching something on the side: I set my golf clubs against the car and opened the trunk.
2. To place something against some background: The author has set the love story against the backdrop of war. In the picture, the old church is set against the large, glass skyscrapers.
3. To place something in contrast to something else: The price seems like a bargain when you set it against real estate prices in larger cities.
4. To incite someone to oppose or resist someone or something: The civil war set families against one another. The bosses are set against the proposal, so I doubt it will go through.
Strongly opposed to: We are dead set against the idea.