1. Dutch dancer who was executed by the French as a German spy in World War I (1876-1917)
   - Mata Hari

Type of: spy, undercover agent

• underachieve
• underachievement
• underachiever
• underact
• underactive
• underage
• underarm
• underbelly
• underbid
• underbodice
• underbody
• underboss
• underbred
• underbrush
• undercarriage
• undercharge
• underclass
• underclassman
• underclothed
• underclothes
• underclothing
• undercoat
• undercoated
• undercook
• undercover