Grounds and Settlings

Grounds noun - Dregs consisting of solid particles (especially of coffee) that form a residue.

Settlings is a synonym for grounds in dregs topic. In some cases you can use "Settlings" instead a noun "Grounds", when it comes to topics like sediment.

Settlings noun - Matter that settles to the bottom of a body of liquid.

Grounds is a synonym for settlings in residue topic. You can use "Grounds" instead a noun "Settlings", if it concerns topics such as dregs, accumulation of solid, solid residue from liquid solution.