'Sachem' definitions:

Definition of 'sachem'

From: WordNet
noun
A political leader (especially of Tammany Hall)
noun
A chief of a North American tribe or confederation (especially an Algonquian chief) [syn: sachem, sagamore]

Definition of 'Sachem'

From: GCIDE
  • Sachem \Sa"chem\ (s[a^]"chem), n. A chief of a tribe of the American Indians; a sagamore. See Sagamore. [1913 Webster]