'Duchess' definitions:
Definition of 'duchess'
(from WordNet)
noun
The wife of a duke or a woman holding ducal title in her own right
Definition of 'Duchess'
From: GCIDE
- Duchess \Duch"ess\, n. [F. duchesse, fr. duc duke.] The wife or widow of a duke; also, a lady who has the sovereignty of a duchy in her own right. [1913 Webster]