1. (of a game) where total payout is fixed, so what one person gains the other must lose

Encyclopedia: Zero-sum

• aperitif
• apert
• aperture
• apery
• apeshit
• apetalous
• apetalous flower
• apex
• apex of the sun's way
• Apgar score
• aphaeresis
• aphaeretic
• aphagia
• aphakia
• aphakic
• aphanite
• aphanitic
• aphasia
• aphasic
• Aphasmidia
• aphelion
• apheresis
• apheretic
• aphesis
• aphetic