1. Of Canada and northeastern United States
   - New World least weasel

Type of: weasel

• firman
• firmer chisel
• Firmiana
• Firmiana simplex
• firmly
• firmness
• firmness of purpose
• firmware
• first
• first aid
• First Amendment
• first and last
• first appearance
• first balcony
• First Baron Beveridge
• First Baron Kelvin
• First Baron Lytton
• First Baron Macaulay
• First Baron Marks of Broughton
• First Baron Passfield
• First Baron Rutherford
• First Baron Rutherford of Nelson
• First Baron Tennyson
• first base
• first baseman