duplicate
A. [ˈdju:plɪkeɪt] -transitive verb
1. (=copy)
[+document, letter] duplicar (on machine) copiar
2. (=repeat)
[+action] repetir
B. [ˈdju:plɪkɪt] -noun
(=copy of letter etcetera)   duplicado (m), copia (f)
·in duplicate
·por duplicado
C. [ˈdju:plɪkɪt]
-adjective
[copy] duplicado
D. [ˈdju:plɪkɪt] -compound
·duplicate key -noun duplicado (m) de una llave