【计】 two-person game
both; double; even; twin; two; twofold
【化】 dyad
【医】 amb-; ambi-; ambo-; bi-; bis-; di-; diplo-; par
human; fellow; human being; individual; man; people; person; soul
【医】 anthropo-; homme; man
【计】 game; game playing; Grundy's game Grundy