What is School ?
School is (noun) 1. a place where stu- dents, usually children, are taught Our lit- tle boy is four, so he’ll be going to school this year. Some children start school younger than that. What did the children do at school today? When he was sixteen, he left school and joined the army. Which school did you go to? grammar school a school which selects children by an entrance exami- nation. public school 2. a section of a col- lege or university The school of medicine is one of the largest in the country. She’s studying at law school. 3. a group of similar artists painters who do not belong to the naturalist school 4. a group of animals a school of porpoises(verb) to train someone He was schooled in the art of tapping telephones.
source: Easier English, Student Dictionary Upper Intermediate Level