dual

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.

   The octahedron is the dual of the cube. The icosahedron is the dual of the dodecahedron.

3. The dual number.

   Dual, Zweizahl

   дво́йственное число́dvójstvennoje čisló

   двоїна́dvojiná

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.

1. He has a dual personality.

   У нього роздвоєння особистості. — deniko

   ruУ него раздвоение личности. — al_ex_an_der

   deEr hat eine gespaltene Persönlichkeit. — Pfirsichbaeumchen

   CK · Tatoeba · CC BY 2.0 FR · B1Open on TatoebaReport a problem

2. I want my children to have dual citizenship.

   Я хочу, щоб мої діти мали подвійне громадянство. — deniko

   ruЯ хочу, чтобы у моих детей было двойное гражданство. — odexed

   deIch möchte, dass meine Kinder eine doppelte Staatsbürgerschaft haben. — al_ex_an_der

   CK · Tatoeba · CC BY 2.0 FR · B1Open on TatoebaReport a problem

3. I have dual citizenship.

   У мене подвійне громадянство. — deniko

   ruУ меня двойное гражданство. — sharptoothed

   deIch habe eine doppelte Staatsbürgerschaft. — Pfirsichbaeumchen

   CK · Tatoeba · CC BY 2.0 FR · B1Open on TatoebaReport a problem

4. Tom has a dual personality.

   ruУ Тома раздвоение личности. — odexed

   deTom hat eine gespaltene Persönlichkeit. — wolfgangth

   CK · Tatoeba · CC BY 2.0 FR · B1Open on TatoebaReport a problem

5. I understand you have dual citizenship.

   CK · Tatoeba · CC BY 2.0 FR · B1Open on TatoebaReport a problem

regular

• du.abbreviation alternative