What does hexad mean?
Hexad is a learned noun for a group of exactly six members. It can refer to people, objects, or abstract elements, emphasizing the number six rather than merely describing a set. The term is used in formal, mathematical, symbolic, and literary contexts, while ordinary usage often prefers the phrase “group of six.” A committee with two representatives from each of three regions, for example, can be described as a hexad. The word comes from Latin and ultimately Greek, and it is built on the same numerical root found in hex, hexagon, and hexadecimal. Although uncommon in everyday speech, hexad is useful when the exact number of elements is analytically significant. Its unusual sound and precise meaning make it more than a simple substitute for six: it packages the idea of six-part unity into one compact term.
nounA group or set consisting of six members.
- A group, set, or arrangement of six members.
"The committee was organized as a hexad, with two representatives from each of three regions."
"The committee was organized as a hexad, with two representatives from each of three regions."
"Her short story imagines a hexad of masked figures guarding the observatory."
The standard plural is hexads.
"The two hexads reviewed the proposals separately."
Six get together: hexad shares its numerical root with hexagon and hexadecimal.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hexad come from?
English borrowed hexad from Latin hexas, which came from Ancient Greek ἑξάς (hexás), a word associated with a group of six. The Greek numerical root is also reflected in English words such as hexagon and hexadecimal. The English form became established in the early modern period as a term for a six-membered group.
Related word forms
How hexad is actually used
A formal or specialized term; in general prose, “group of six” or “six members” is usually clearer and more natural.
Easily confused with hexad
A hexagon is a geometric figure with six sides, whereas a hexad is any group or set of six things.