estrenar bedeutet auf Englisch

break in▼(to make something new function well through use)
verb
[UK: breɪk ɪn] [US: ˈbreɪk ɪn]

premiere▼((intransitive) of a film or play, to play for the first time)
verb
[UK: ˈpre.mieə(r)] [US: pre.ˈmɪr]Today's the premiere. = Hoy es el estreno.

brand new▼(utterly new)
adjective
[UK: brænd njuː] [US: ˈbrænd nuː]