numero uno/ˌnoohməroh ʹoohnoh/ noun

• diplopod
• diplotene
• dipole
• dipole moment
• dip one's wick
• dipper
• dippy
• dipso
• dipsomania
• dipstick
• dipswitch
• dipteran
• dipterous
• diptych
• dir.
• dire
• direct
• direct access
• direct action
• direct current
• direct debit
• direct grant
• direction
• directional
• direction finder