This is the 5276th most frequent Spanish word.
intensificarán
"Intensificarán" means "they will intensify."
Here 'intensificarán' is used to describe an increase in intensity of a natural phenomenon, specifically the rain.
Las nubes indican que las lluvias se intensificarán esta noche.
The clouds indicate that the rains will intensify tonight.
Here 'intensificarán' is applied to depict the augmenting intensity of practice or preparation.
Los entrenamientos se intensificarán a medida que se acerque la competencia.
The training sessions will intensify as the competition approaches.
In this context, 'intensificarán' signifies the heightened level of effort or discussion in negotiations.