In chemistry, a suspension is a mixture containing solid particles that are sufficiently large for sedimentation or separation to occur.
A colloid is a substance in which insoluble particles are suspended throughout another substance
Whole milk is an excellent example of both a colloid and a suspension. The milk proteins will remain dispersed (colloid), and will never settle.
The lipids (milk fats), however, will separate, and rise to the top of the liquid.
Muddy water is an example of a suspension in which sedimentation will occur. The suspended silt will settle to the bottom of a river.