Heidegger's being-toward-death reveals

Heidegger's concept of authenticity means

Heidegger's authenticity means owning your existence rather than drifting in das Man

Dasein

Dasein means 'existence' in German

Martin Heidegger

Martin Heidegger's magnum opus, Being and Time (1927)

Heidegger meant by the forgetting of Being

Heidegger posited that Western metaphysics equates Being with beings, leading to the forgetting of Being

Phenomenology (philosophy)

Epoché brackets existence claims to study how things appear

Heidegger means by 'thrownness' (Geworfenheit)

Heidegger's 'thrownness' (Geworfenheit) refers to our inevitable situation in life we didn't choose