4 Letter Words That Start With X: Your Quick Reference

Looking for four-letter words that begin with the letter X? Here’s a list to help you expand your vocabulary.

1. Xray- a type of radiation used for medical imaging.
2. Xyle- wood, especially the woody part of a plant.
3. Xyst- a covered portico or walkway in ancient Greek architecture.
4. Xyly- pertaining to xylene, a type of solvent.
5. Xing- abbreviation for “crossing.”
6. Exon- a segment of DNA or RNA that contains coding information.
7. Axes- the plural of axis, or tools with a heavy bladed head.

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