Source : Webster's Revised Unabridged Dictionary (1913)

Learner \Learn"er\, n.
   One who learns; a scholar.

Source : WordNet®

learner
     n 1: someone (especially a child) who learns (as from a teacher)
          or takes up knowledge or beliefs [syn: {scholar}, {assimilator}]
     2: works for an expert to learn a trade [syn: {apprentice}, {prentice}]