Here are some examples of words with the root "di":
* Dichotomy: a division into two parts.
* Diploma: a document certifying that someone has completed a course of study.
* Dipole: a molecule with two opposite electrical charges.
* Dissect: to cut apart for examination.
* Dilemma: a situation in which a difficult choice has to be made between two or more alternatives.
The root "di" can also be found in words that refer to things that are two-sided, such as dicotyledon (a plant with two seed leaves) or bilateral (affecting both sides of something).