singularity
1. [ noun ] the quality of being one of a kind
Synonyms: uniqueness
Examples:

"that singularity distinguished him from all his companions"

Related terms: individuality
2. [ noun ] strangeness by virtue of being remarkable or unusual
Related terms: unfamiliarity
Similar spelling:   singular
  singularly
  singularize
  singularise
  Singletary
  singultus
  singular_form
  singletary_pea