1. At night
   "nocturnally active bird"

See also: nocturnal

• boring
• boringly
• boringness
• Boris Fyodorovich Godunov
• Boris Godunov
• Boris Karloff
• Boris Leonidovich Pasternak
• Boris Pasternak
• Boris Spassky
• Boris Vasilevich Spassky
• born
• born-again
• born-again Christian
• Bornean
• Borneo
• Bornholm disease
• bornite
• Borodin
• Borodino
• boron
• boron chamber
• boron counter tube
• boron trifluoride
• boronic
• borosilicate