This is the 4927th most frequent Spanish word.
disparar
To shoot or fire (a weapon, projectile, or camera).
The verb 'disparar' is used in its literal sense, meaning 'to shoot' or 'to fire a weapon', as an action.
Él decidió disparar hacia el blanco para practicar tiro.
He decided to shoot at the target to practice marksmanship.
Here 'disparar' is used metaphorically, meaning 'to increase steeply or rapidly', applied to prices.
Los precios comenzaron a disparar debido a la alta demanda.
Prices began to skyrocket due to the high demand.
In this context, 'disparar' means 'to trigger' or 'to provoke', indicating the initiation of something, namely rumors.