'Homonymy' definitions:

Definition of 'homonymy'

(from WordNet)
noun
The relation between two words that are spelled the same way but differ in meaning or the relation between two words that are pronounced the same way but differ in meaning

Definition of 'Homonymy'

From: GCIDE
  • Homonymy \Ho*mon"y*my\, n. [Gr. ?: cf. F. homonymie.]
  • 1. Sameness of name or designation; identity in relations. --Holland. [1913 Webster]
  • Homonymy may be as well in place as in persons. --Fuller. [1913 Webster]
  • 2. Sameness of name or designation of things or persons which are different; ambiguity. [1913 Webster]