Hierarchy – similar to binaries but, refers to the types of binaries.
Binary (Binaries) – a pair of connected terms or concepts with opposite meanings.
Différance – how a words meaning can never be absolutely pinned down, you can’t define one word without the use of other words.
Essentialism – essentialists believe in an absolute universal essence of things and the concept that we have assigned words and definitions that already existed.
Marxist Literary Theory 