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Dictionary Checker helps you quickly verify whether a word appears in the same local English word list used by our word tools.

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Meaning of duals

noun

Of an item that is one of a pair, the other item in the pair.
Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces. Example: The octahedron is the dual of the cube.
(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.
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.

Source: Free Dictionary API.

What is a Dictionary Checker?

A dictionary checker verifies whether a typed word exists in a word list. It is useful for word games, puzzle checks, spelling checks, and quick vocabulary confirmation.

How It Works

The tool cleans the input, compares it against a local English word list, and then tries to load definitions from a free dictionary source when available.