at the peak of activity or progress
en el apogeo de la actividad o el progreso (en el apogeo de la actividad o el progreso)
"The dance rehearsal is in full swing before the big day."
"El ensayo de baile está en pleno apogeo antes del gran día." (el ensayo de baile está en pleno apogeo antes del gran día)
to understand something fully
to become extremely excited or enthusiastic about something
to strike repeatedly with force, such as intense sun or rain
everything; the entire effort
to take full responsibility for something
to officially begin a meeting or discussion