ad lib
US /ˌæd ˈlɪb/
UK /ˌæd ˈlɪb/

1.
improvisar, hablar de improviso
speak or perform in public without previously preparing one's words
:
•
The comedian had to ad lib when his script was lost.
El comediante tuvo que improvisar cuando su guion se perdió.
•
She's good at ad-libbing during interviews.
Ella es buena para improvisar durante las entrevistas.
1.
improvisación, improviso
a remark or gesture made without previous preparation
:
•
His witty ad lib got a huge laugh from the audience.
Su ingenioso improviso provocó una gran carcajada del público.
•
The director allowed the actors to add some ad libs to the dialogue.
El director permitió a los actores añadir algunos improvisos al diálogo.
1.
ad lib, de improviso
without previous preparation
:
•
He spoke ad lib, surprising everyone with his impromptu speech.
Habló ad lib, sorprendiendo a todos con su discurso improvisado.
•
The musicians played some parts ad lib during the jazz performance.
Los músicos tocaron algunas partes ad lib durante la actuación de jazz.