quintuplet

Noun
  1. The cardinal number that is the sum of four and one (synset 113766661)
    is a type of: digit, figure - one of the elements that collectively form a system of numeration
    same as: 5, cinque, fin, five, fivesome, little phoebe, pentad, phoebe, quint, quintet, v
  2. One of five children born at the same time from the same pregnancy (synset 110521493)
    is a type of: sib, sibling - a person's brother or sister
    same as: quin, quint
  3. A set of five similar things considered as a unit (synset 108004671)
    is a type of: set - a group of things of the same kind that belong together and are so used
    same as: quintet, quintette, quintuple

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