Cell Mask

Parameters

Distance: Mask Distance
Cells Scale: Cells Texture Scale
Cells Shape: Adds noise to the cells shape
Seed: Gives different results using the same parameters
Mask Strength: Mask Strength

▼ AREA NOISE
Scale: Area Noise Scale

Vector: An input where you can replace the default vector, for example any coordinate with a Mapping node for better control.
More about stretched textures & mapping