You have different biceps in your body. They're muscles that attach to bones in two places. The word root "ceps" means "head" and refers to the ends that attach to bones. The word root "bi" must refer to

Birds and many flies are dipterous. That means they have two wings. The Greek word root "pteron" means "wing." The word root "di" refers to...

If you are bilingual you speak two languages. The word root "lingua" literally means "tongue." The word root "bi" refers to

If something is dichromatic, it has two colors. The word root "chroma" means color. The word root "di" must refer to

If you divide something into two parts you bisect it. The word root "sect" means to cut. The word root "bi" must refer to

If you've had to make a tough decision between two choices that were equally good or bad, you've faced a dilemma. the word root "lemma" means "to take or receive." The word root "di" refers to

You are a human which makes you a biped, because you walk on two feet. The word root "ped" means foot, so the word root "bi" must refer to