Χ/χ
Also known as Χ, χ, chi (Greek), khi (Greek)
Greek letter “chi” or “khi”
AI overview
Chi (Χ/χ) is a letter from the ancient Greek alphabet that represents a hard "kh" sound, similar to the "ch" in the German word "Bach." It appears in English primarily through Greek-derived words and scientific terminology, and is also used as a symbol in mathematics and other fields.
AI-generated from the Wikipedia summary — may contain errors.
Article
History
Archaic local variants