self-same

Exactly that one

Self-same means exactly the same, identical—used for emphasis when mere "same" feels insufficient.

It stresses that two things are not just similar but one and the same: The self-same argument was made a century ago.

The word has a literary or old-fashioned flavor, rarely appearing in casual speech.

equivalence

duplicate

Exact replica of original

  • replicaFaithful scaled reproduction
  • cloneGenetically identical organism
  • twinOne of matched pair

carbon-copy · facsimile · match · counterpart · equivalent · indistinguishable · interchangeable · congruent · parallel · corresponding

identity

identical

Exactly the same

consistent · continuous · persistent · enduring · original · authentic · genuine · true · actual · real

emphasis

very

To high degree

specified · indicated · designated · particular · cited · named · identified

Opposites
identity

self-samedifferent

Not the same

distinct · other · separate · disparate · dissimilar

degree of similarity

self-samedifferent

Not the same

dissimilar · unalike · similar · comparable · analogous

Family

selfsame

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G