at at /ˈæt/

noun

1. 100 at equal 1 kip in Laos  ( at )
   100 at equal 1 kip in Laos
    In Laos, if you have 100 at, it's equivalent to 1 kip.
   In Laos, if you have 100 at, it's equivalent to 1 kip.
   
   

preposition

1. () Indicating a specific position, location, direction, or point in time.  ( at )
   Indicating a specific position, location, direction, or point in time.
   
2. () Denoting a specific rate or ratio.  ( at )
   Denoting a specific rate or ratio.
   

 At

noun

1. A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium  ( astatine , At , atomic number 85 )
   a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium