U-boat /ūˈbōt or (German) ooˈ/

A German submarine

• passivate
• passivated
• passivates
• passivating
• passive
• passive-aggressive
• passive immunities
• passive immunity
• passively
• passiveness
• passivenesses
• passive obedience
• passive resistance
• passive resistances
• passive resister
• passive resisters
• passives
• passive smoking
• passivism
• passivisms
• passivist
• passivists
• passivities
• passivity
• passkey