Decrease and Multiplication

noun

• A change downward.
  • usage: "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
  • synonyms: lessening, drop-off
• A process of becoming smaller or shorter.
  • synonyms: decrement
• The amount by which something decreases.
  • synonyms: decrement
• The act of decreasing or reducing something.
  • synonyms: diminution, reduction, step-down

verb

• Decrease in size, extent, or range.
  • usage: "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
  • synonyms: diminish, lessen, fall
• Make smaller.
  • usage: "He decreased his staff"
  • synonyms: lessen, minify

• (v.t.) To cause to grow less; to diminish gradually; as, extravagance decreases one's means.
• (v.) A becoming less; gradual diminution; decay; as, a decrease of revenue or of strength.
• (n.) To grow less, -- opposed to increase; to be diminished gradually, in size, degree, number, duration, etc. or in strength, quality or excellence; as, they days decrease in length from June to December.
• (v.) The wane of the moon.

noun

• The act of producing offspring or multiplying by such production.
  • synonyms: generation, propagation
• A multiplicative increase.
  • usage: "repeated copying leads to a multiplication of errors"; "this multiplication of cells is a natural correlate of growth"
• An arithmetic operation that is the inverse of division; the product of two numbers is computed.
  • usage: "the multiplication of four by three gives twelve"; "four times three equals twelve"
  • synonyms: times

• (n.) The act or process of multiplying or of increasing in number; the state of being multiplied; as, the multiplication of the human species by natural generation.
• (n.) The art of increasing gold or silver by magic, -- attributed formerly to the alchemists.
• (n.) An increase above the normal number of parts, especially of petals; augmentation.
• (n.) The process of repeating or adding to itself, any given number or quantity a certain number of times; commonly, the process of ascertaining by a briefer computation the result of such repeated additions; also, the rule by which the operation is performed; -- the reverse of division.