Preschools often have a number of extra fees, such as application, enrollment or re-enrollment fees of $50-$100 a year; material, supplies or book fees of $200-$500 a year; and field trip, activity or event fees of $50-$300 or more.
2. pillar-anything that approximates the shape of a column or tower; the test tube held a column of white powder; a tower of dust rose above the horizon; a thin pillar of smoke betrayed their campsite. tower, column.
The definition of a matrix is an environment in which something is created or the rock in which a crystal or fossil is embedded. 1  An example of a matrix is the Constitution from which democracy was born.2  An example of a matrix is a chunk of rock in which amethyst crystals are formed.INK / CITE ADD TO WORD LIST. noun. The definition of a matrix is an environment in which something is created or the rock in which a crystal or fossil is embedded. 1  An example of a matrix is the Constitution from which democracy was born. 2  An example of a matrix is a chunk of rock in which amethyst crystals are formed.