This is the 4982nd most frequent Spanish word.
empezará
"Empezará" means "will start" or "will begin."
Here, 'empezará' is used in the future tense to express something that is scheduled to begin.
El curso empezará el próximo lunes.
The course will start next Monday.
In this sentence, 'empezará' indicates a future action contingent on a condition.
Cuando todo esté listo, empezará a trabajar en el proyecto.
When everything is ready, he/she will start working on the project.
'Empezará' here conveys a planned future action dependent on another event.