What is a vocabulary term for Drought?

There isn't one single perfect vocabulary term to replace "drought" that encompasses all its meanings, as the best word depends on the context. However, depending on the nuance you want to convey, some possibilities include:

* Aridity: This refers to a state of dryness, often used to describe a region's climate rather than a specific period of dryness.

* Desiccation: This emphasizes the drying-out process itself.

* Water scarcity: This focuses on the lack of available water resources.

* Hydrological deficit: This is a more technical term referring to a shortfall in water supply.

* Arid spell: This points to a temporary period of dryness.

The best replacement will depend on the specific context in which you are using the word "drought."