Adjective prolonged has 3 senses
  1. drawn-out, extended, lengthy, prolonged, protracted - relatively long in duration; tediously protracted; "a drawn-out argument"; "an extended discussion"; "a lengthy visit from her mother-in-law"; "a prolonged and bitter struggle"; "protracted negotiations"
    Antonym: short (indirect, via long)
  2. elongated, extended, lengthened, prolonged - drawn out or made longer spatially; "Picasso's elongated Don Quixote"; "lengthened skirts are fashionable this year"; "the extended airport runways can accommodate larger planes"; "a prolonged black line across the page"
    Antonym: short (indirect, via long)
  3. prolonged - (of illness) developing slowly or of long duration
    Antonym:
    acute (indirect, via chronic)
,Verb prolong has 2 senses
  1. prolong, protract, extend, draw out - lengthen in time; cause to be or last longer; "We prolonged our stay"; "She extended her visit by another day"; "The meeting was drawn out until midnight"
    --1 is one way to lengthen
    Derived forms: noun prolongation3, noun prolongation2, noun prolongation1
    Sample sentences:
    Somebody ----s something
    Something ----s something
  2. prolong, sustain, keep up - lengthen or extend in duration or space; "We sustained the diplomatic negociations as long as possible"; "prolong the treatment of the patient"; "keep up the good work"
    --2 is one way to continue, uphold, carry on, bear on, preserve
    Derived forms: noun prolongation3, noun prolongation1
    Sample sentences:
    Somebody ----s something
    Something ----s something
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