ket

noun6

1. •
   (informal) ketamine
2. •
   A column vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate transpose of a bra (a row vector); a ket vector. Symbolised by |...〉.
3. •
   Sweetmeats.
4. •
   A sweet, treat or candy.
5. •
   (Northern-England) Carrion; any filth.
6. •
   (Scotland) matted wool

noun2

1. •
   A member of a people of Krasnoyarsk Krai in Central Siberia, Russia.
2. •
   (informal) A native or inhabitant of Brussels.