Adjective iv has 1 sense
  1. four, 4, iv - being one more than three
    Antonym: ordinal (indirect, via cardinal)
,Noun iv has 2 senses
  1. four, 4, IV, tetrad, quatern, quaternion, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe - the cardinal number that is the sum of three and one
    --1 is a kind of digit, figure
  2. intravenous feeding, IV - administration of nutrients through a vein
    --2 is a kind of feeding, alimentation
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