bicolor- having two different colors

 

bicuspid- a two-pointed tooth located in the side of the jaw

 

bicycle- a vehicle with two wheels

 

biennial- happening every two years

 

bifocals- eyeglasses with lenses that have two different sections--for seeing close up and far away

 

bilingual- able to speak two different languages

 

bimonthly- happening every two months

 

biped- a two-footed creature

 

biplane- an airplane with two pairs of wings

 

biweekly- happening every two weeks