* Prefixes are rarely standalone: "Du" is a possible prefix in some languages, but it's not a common standalone prefix in English. We usually see prefixes attached to root words, like "duet" (two singers) or "dual" (two).
* Potential for misspellings: The combination "du" is often part of words where it's not a clear prefix, like "duration" or "ductile," making it tricky to find true "Du" words.
Here are some possibilities:
* Duet: A musical performance by two singers or instrumentalists.
* Dual: Consisting of two parts or elements.
* Ductile: Capable of being stretched or drawn out into thin wires.
* Duality: The state of being two or having two parts.
It's also possible to find less common words with "Du" at the beginning:
* Duchess: The wife or widow of a duke.
* Duchy: A territory ruled by a duke or duchess.
* Duotone: A photograph or image reproduced in two colors.
* Duplex: A building or apartment with two units, one above the other.
Let me know if you're looking for words in a specific context or category, and I can help you further!