#sameness  the quality of being alike: "sameness of purpose kept them together"
  exclusion:  #difference
  supertype:  #quality  an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare
  subtype:  #identicalness__identicalnes__indistinguishability  exact sameness; "they shared an identity of interests"
     subtype:  #oneness__onenes  the quality of being united into one
     subtype:  #selfsameness  the quality of being identical with itself
  subtype:  #similarity  the quality of being similar
     subtype:  #approximation.similarity  the quality of of being similar (especially close in value)
        subtype:  #approach.approximation  a close approximation; "the nearest approach to genius"
        subtype:  #sort  an approximate definition or example; "she wore a sort of magenta dress"; "she served a creamy sort of dessert thing"
     subtype:  #homogeny  (biology) similarity because of common evolution
     subtype:  #homology  the quality of being similar or corresponding in position or value or structure or function
     subtype:  #isomorphism  (biology) similarity of form or shape or structure
     subtype:  #alikeness__alikenes__likenes  similarity in appearance or character or nature between persons or things: "man created God in his own likeness"
        subtype:  #mirror_image__reflection__reflexion  a likeness in which left and right are reversed
        subtype:  #compare__equivalence__comparability  qualities that are comparable; "no comparison between the two books"; "beyond compare"
        subtype:  #resemblance  similarity in appearance or external or superficial details
           subtype:  #mutual_resemblance  symmetrical resemblance
           subtype:  #affinity.resemblance  inherent resemblance between persons or things
        subtype:  #spitting_image  a perfect likeness or counterpart
     subtype:  #parallelism__correspondence  similarity by virtue of correspondence
     subtype:  #uniformness__uniformnes  the quality of lacking diversity or variation (even to the point of boredom)
        subtype:  #homogeneousness__homogeneousnes  the quality of being similar or comparable in kind or nature; "there is a remarkable homogeneity between the two companies"
        subtype:  #consistence__consistency  a harmonious uniformity or agreement among things or parts
     subtype:  #analogue__analog__parallel  something having the property of being analogous to something else
  subtype:  #equality  the quality of being the same in quantity or measure or value or status
     subtype:  #equatability  capability of being equated
     subtype:  #equivalence  essential equality and interchangeability
        subtype:  #parity  functional equality
     subtype:  #evenness  the quality of being balanced

No statement uses or specializes #sameness; click here to add one.