Singularity
sin·gu·lar·i·ty
ˌsiNGɡyəˈlerədē/
noun
  1. the state, fact, quality, or condition of being singular.
    “he believed in the singularity of all cultures”
  2. PHYSICSMATHEMATICS
    a point at which a function takes an infinite value, especially in space-time when matter is infinitely dense, as at the center of a black hole.