duo /dooˈō, dūˈō/

1. A duet
2. Two persons, etc, associated in some way (eg a pair of musicians or variety artists)

• anthropophagies
• anthropophaginian
• @
• 1,4-diaminobutane
• 1,4-dihydroxybenzene
• 1,4-dioxycyclohexane
• 2,6,8-trihydroxypurine
• 2B
• 2H
• 32-bit
• 3-D
• 3M
• 4 x 4
• a
• a'
• a-
• A
• A1
• aa
• AA
• AAA
• AAAS
• AAC
• AAEW
• aah