Graphentheorie
graph theory
Gruppentheorie
group theory
Dramentheorie
dramatic theory
Quantentheorie
quantum theory
Zahlentheorie
theory of numbers
Gruppentherapie
group therapy
Knotentheorie
knot theory
Mengentheorie
set theory
Wellentheorie
wave model
wave theory
Spieltheorie
game theory
Sprachtheorie
linguistic theory
theory of language
Grammatiktheorie
grammar
Graphikerin
graphic designer
Graphitfluorid
graphite fluoride
Taphephobie
taphephobia
Krähenbeere
crowberry
Präsentatorin
presenter
Pongidentheorie
Pongidae hypothesis
Eichtheorie
gauge theory
Chaostheorie
chaos theory