Typical or normal; usual; ordinary. number expressing the central or typical value in a set of data. To add numbers then divide by the number of items.

To demand that someone does something.

To replace an existing version with a newer one.

To make something stronger.

set or category. Groups that share some things in common. assign to category.

thing that is needed or wanted. Some things that are a necessity.

To split numbers by another number, e.g. 6 / 2 = 3.

To open an essay to set the scene.

becoming greater in size. To make or become larger in size or amount.

advanced or elaborated to specified degree. To grow bigger, more complex, or more advanced.

supply of commodity not needed for immediate use but available if required. Amounts of some things kept for future, as spares. To not use all of, so you can use it later.

done with full awareness of likely consequences. To find an answer using mathematics.

smallest or lowest. least or smallest amount or quantity possible or required.

act or process bringing change. Exchanges of one set of clothes for another. make different.

One more, but not this. One more added. additional person or thing of same type.