Meaning of Dual | Babel Free

Definitions

1. Of an item that is one of a pair, the other item in the pair.
2. Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
3. The dual number.
4. Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space.
5. A head-to-head match or meet between two teams, such as two high schools or colleges.

Equivalents

Examples

“The octahedron is the dual of the cube.”

“Wrestling duals and meets take place at the Wisconsin Field House. There are no advance single event ticket sales.”

“But Dave agreed to participate in the Bulgarian dual, and that trapped me into having to wrestle, too.”

“Early in 2021, she became the first female to compete and win a match at the Ter-Hark Cup wrestling dual, helping her squad to victory.”

CEFR level