Noun at has 2 senses
  1. astatine, At, atomic number 85 - a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
    --1 is a kind of chemical element, element; halogen
  2. at - 100 at equal 1 kip
    --2 is a kind of
    Laotian monetary unit
    --2 is a part of kip