The Collaborative International Dictionary of English v.0.48:

Enumeration \E*nu`mer*a"tion\, n. [L. enumeratio: cf. F.
   ['e]num['e]ration.]
   1. The act of enumerating, making separate mention, or
      recounting.
      [1913 Webster]

   2. A detailed account, in which each thing is specially
      noticed.
      [1913 Webster]

            Because almost every man we meet possesses these, we
            leave them out of our enumeration.    --Paley.
      [1913 Webster]

   3. (Rhet.) A recapitulation, in the peroration, of the heads
      of an argument.
      [1913 Webster]

WordNet (r) 3.0 (2006):

enumeration
    n 1: a numbered list [syn: enumeration, numbering]
    2: the act of counting; reciting numbers in ascending order;
       "the counting continued for several hours" [syn: count,
       counting, numeration, enumeration, reckoning,
       tally]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "enumeration":
   accounting, active list, blacklist, blocking, census, checklist,
   civil list, counting, dactylonomy, detailing, foliation, inventory,
   inventorying, itemization, items, list, measurement, numbering,
   numeration, pagination, parsing, quantification, quantization,
   register, registry, repertory, resolution, retired list, scansion,
   schedule, schematization, sick list, tally, tally sheet, tallying,
   telling



The Free On-line Dictionary of Computing (30 December 2018):

enumeration

   1.  A bijection with the natural numbers; a
   counted set.

   Compare well-ordered.

   2.  enumerated type.

   (1996-11-28)