double [doubled, doubling, doubles](to multiply by two) verb [UK: ˈdʌb.l̩] [US: ˈdʌb.l̩]Sales should double this year. = Las ventas deberían duplicarse este año.
duplicate [duplicated, duplicating, duplicates](to make a copy of) verb [UK: ˈdjuː.plɪk.eɪt] [US: ˈduː.pləkət]Send it in duplicate. = Envíelo por duplicado.
duplicar la velocidad verb
double [doubled, doubling, doubles](to go at twice the normal speed) verb [UK: ˈdʌb.l̩] [US: ˈdʌb.l̩]