preparatory school work done outside school (especially at home), Work that is done at home, especially school exercises set by a teacher, Studies or other preparatory work done prior to some activity; -- usually used of preparations for activities of significance or consequence for the performer

Preparatory, noun_ A preparatory school, An abbreviation of preposition, UK, uncountable Homework, work set to do outside class time, used widely in public schools and preparatory schools but not state schools, intransitive verb_ To be enrolled in and attend a preparatory school, To prepare for something, To prepare (someone) for a medical examination or surgical procedure