This is the 4216th most frequent French word.
décideront
"Décideront" means "will decide."
In this sentence, "décideront" is the third-person plural future tense form of the verb "décider," meaning "to decide." It indicates an action that will happen in the future. The subject "Les juges" is performing the decision-making activity.
Les juges décideront du verdict demain.
The judges will decide the verdict tomorrow.
Here, "décideront" is used to describe a future decision made by the group represented by "Elles" (they, feminine plural). The focus is on the intentional decision-making process concerning their choice of attire for the event.
Elles décideront quelles robes elles porteront à la fête.
They will decide which dresses they will wear to the party.
In this instance, "décideront" refers to the determination of a strategic plan by "Les responsables" (the officials). It illustrates the future tense application in a professional or organizational context.