[{"word":"duals","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Of an item that is one of a pair, the other item in the pair.","synonyms":[],"antonyms":[]},{"definition":"Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.","synonyms":[],"antonyms":[],"example":"The octahedron is the dual of the cube."},{"definition":"(grammar) dual number The grammatical number of a noun marking two of something (as in singular, dual, plural), sometimes referring to two of anything (a couple of, exactly two of), or a chirality-marked pair (as in left and right, as with gloves or shoes) or in some languages as a discourse marker, \"between you and me\". A few languages display trial number.","synonyms":[],"antonyms":[]},{"definition":"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.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/dual","https://en.wiktionary.org/wiki/duals"]}]