kriegspiel or kriegsspiel /krēgˈspēl/

1. A war game played on a map to train officers
2. A form of chess in which the players use separate boards and are allowed only limited communication through an umpire

• strangeness
• strangenesses
• sleepiness
• sleepinesses
• sleeping
• sleeping bag
• sleeping bags
• sleeping berth
• sleeping berths
• sleeping car
• sleeping carriage
• sleeping carriages
• sleeping cars
• sleeping coach
• sleeping coaches
• sleeping draught
• sleeping draughts
• sleeping partner
• sleeping partners
• sleeping pill
• sleeping pills
• sleeping policeman
• sleeping policemen
• sleepings
• sleeping sickness