Downward and Decrease

adjective

• Extending or moving from a higher to a lower place.
  • usage: "the down staircase"; "the downward course of the stream"
  • synonyms: down
• On or toward a surface regarded as a base.
  • usage: "he lay face downward"; "the downward pull of gravity"

adverb

• Spatially or metaphorically from a higher to a lower level or position.
  • usage: "don't fall down"; "rode the lift up and skied down"; "prices plunged downward"
  • synonyms: down, downwards, downwardly

• (a.) Tending to a lower condition or state; depressed; dejected; as, downward thoughts.
• (a.) Moving or extending from a higher to a lower place; tending toward the earth or its center or toward a lower level; declivous.
• (a.) Descending from a head, origin or source; as, a downward line of descent.
• (adv.) Alternative of Downwards.

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.