'Lassie' definitions:

Definition of 'lassie'

From: WordNet
noun
A girl or young woman who is unmarried [syn: lass, lassie, young girl, jeune fille]

Definition of 'Lassie'

From: GCIDE
  • Lassie \Las"sie\ (l[a^]s"s[i^]), n. A young girl; a lass. [Scot.] [1913 Webster]