Here is a list of nouns that start with BI.

bib, bibliography, bicarbonate, bicep, bich

bickering, bicycle, bid, bidder, bidding

biennium, bigotry, bile, bilge, bill

billboard, billet, billiard, billing, bin

bind, binder, binding, bindle, binge

biographer, biography, biologist, biology, biophysicist

biopsy, biplane, birch, bird, birdbath

birdie, birefringence, birth, birthcontrol, birthday

birthplace, birthright, biscuit, bishop, bishopry

bison, bisque, bit, bitch, bite

biter, bivouac, biz

Hope you enjoy this page of nouns that start with bi and the rest of this noun list a-z site as well.