General terms:
* Kids: This is a very common and informal term.
* Children: This is a more formal term.
* Little ones: This is a term often used to refer to young children.
* Youngsters: This term can be used for children and teenagers.
* Minors: This is a legal term referring to anyone under the age of 18.
Specific terms:
* Babies: For infants.
* Toddlers: For children who are just learning to walk.
* Preschoolers: For children between the ages of 3 and 5.
* Schoolchildren: For children who attend school.
* Teenagers: For children between the ages of 13 and 19.
Other terms:
* Offspring: This is a more formal term for children.
* Progeny: This is another formal term for children.
* Brats: This is an informal and often negative term for children.
The best term to use will depend on the specific situation.