Suspension and emulsion is not the same thing. The suspension is the mixture of solid-liquid and emulsion is the similar mixture of liquid Mg(OH)2 mixed with water is a suspension but the mixture obtain from oil and water in a bottle a bottle after shaken is the emulsion.
The suspension is a mixture of a solid in a liquid or a gas such that the particles of solids in the suspension separate from the liquid or the gas slowly. The emulsion is a preparation of one liquid evenly distributed in another. The technical term used is “one liquid dispersed in another”.