In mathematics, a set is a collection of distinct objects, considered as an object in its own right. For example, the numbers 2, 4, and 6 are distinct objects when considered separately, but when they are considered collectively they form a single set of size three, written {2,4,6}. Sets are one of the most fundamental concepts in mathematics. Developed at the end of the 19th century, set theory is now a ubiquitous part of mathematics, and can be used as a foundation from which nearly all of mathematics can be derived. In mathematics education, elementary topics such as Venn diagrams are taught at a young age, while more advanced concepts are taught as part of a ...

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  1. A punch for setting nails in wood.
    nail set
  2. A device for receiving broadcast radio waves; a radio or television.
    television set
  3. A sett; a hole made and lived in by a badger.
  4. A small tuber or bulb used instead of seed, particularly onion sets and potato sets.
  5. The amount the teeth of a saw protrude to the side in order to create the kerf.
  6. That which is staked; a wager; hence, a gambling game.
  7. Permanent change of shape caused by excessive strain, as from compression, tension, bending, twisting, etc.
    the set of a spring
  8. A piece placed temporarily upon the head of a pile when the latter cannot otherwise be reached by the weight, or hammer.
  9. The width of the body of a type.
  10. A young oyster when first attached.
  11. Collectively, the crop of young oysters in any locality.

Noun (etymology 2)

  1. A young plant fit for setting out; a slip; shoot.
  2. A rudimentary fruit.
  3. The setting of the sun or other luminary; the close of the day.
  4. General movement; direction; drift; tendency.
    Here and there, amongst individuals alive to the particular evils of the age, and watching the very set of the current, there may have been even a more systematic counteraction applied to the mischief. — Thomas De Quincey.
  5. A matching collection of similar things.
    a set of tables
  6. A collection of various objects for a particular purpose.
    a set of tools
  7. An object made up of several parts.
    a set of steps
  8. A collection of zero or more objects, possibly infinite in size, and disregarding any order or repetition of the objects which may be contained within it.
  9. Set theory.
  10. A group of people, usually meeting socially.
    the country set
  11. The scenery for a film or play.
  12. The initial or basic formation of dancers.
  13. A group of repetitions of a single exercise performed one after the other without rest.
  14. A complete series of games, forming part of a match.
  15. A complete series of points, forming part of a match.
  16. The act of directing the ball to a teammate for an attack.
  17. A musical performance by a band, disc jockey, etc., consisting of several musical pieces.
  18. A drum kit, a drum set.
    He plays the set on Saturdays.
  19. A class group in a subject where pupils are divided by ability.
  20. Three of a kind in poker. In games, the term is usually reserved for a situation in which a pair in a player's hand is matched by a single card on the board. Compare with trips.


  1. To put (something) down, to rest.
  2. To attach or affix (something) to something else, or in or upon a certain place.
    I have set my heart on running the marathon.
  3. To put in a specified condition or state; to cause to be.
  4. To cause to stop or stick; to obstruct; to fasten to a spot.
    to set a coach in the mud
  5. To determine or settle.
  6. To adjust.
  7. To punch (a nail) into wood so that its head is below the surface.
  8. To arrange with dishes and cutlery.
  9. To introduce or describe.
  10. To locate (a play, etc.); to assign a backdrop to.
  11. To compile, to make (a puzzle or challenge).
    This crossword was set by Araucaria.
  12. To prepare (a stage or film set).
  13. To fit (someone) up in a situation.
  14. To arrange (type).
  15. To devise and assign (work) to.
  16. To direct (the ball) to a teammate for an attack.
  17. To solidify.
  18. To render stiff or solid; especially, to convert into curd; to curdle.
    to set milk for cheese
  19. Of a heavenly body, to disappear below the horizon of a planet, etc, as it rotates.
  20. To defeat a contract.
  21. To begin to move; to go forth.
  22. To be fixed for growth; to strike root; to begin to germinate or form.
  23. To sit .
  24. To hunt game with the aid of a setter.
  25. Of a dog, to indicate the position of game.
    The dog sets the bird.
    Your dog sets well.
  26. To apply oneself; to undertake earnestly; to set out.
  27. To fit music to words.
  28. To place plants or shoots in the ground; to plant.
    to set pear trees in an orchard
  29. To become fixed or rigid; to be fastened.
  30. To have a certain direction of motion; to flow; to move on; to tend.
    The current sets to the north; the tide sets to the windward.
  31. To place or fix in a setting.
    to set a precious stone in a border of metal
    to set glass in a sash
  32. To put in order in a particular manner; to prepare.
    to set (that is, to hone) a razor
    to set a saw
  33. To extend and bring into position; to spread.
    to set the sails of a ship
  34. To give a pitch to, as a tune; to start by fixing the keynote.
    to set a psalm
  35. To reduce from a dislocated or fractured state.
    to set a broken bone
  36. To lower into place and fix solidly, as the blocks of cut stone in a structure.
  37. To wager in gambling; to risk.
  38. To adorn with something infixed or affixed; to stud; to variegate with objects placed here and there.
  39. To value; to rate; used with at.
  40. To establish as a rule; to furnish; to prescribe; to assign.
    to set a good example; to set lessons to be learned
  41. To suit; to become.
    It sets him ill.


  1. Fixed in position.
  2. Rigid, solidified.
  3. Ready, prepared.
  4. Intent, determined (to do something).
  5. Prearranged.
  6. Fixed in one’s opinion.
  7. Fixed in a certain style.

The above text is a snippet from Wiktionary: set
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