n. 1. preparatory school work done outside school (especially at home). Syn. -- prep, preparation. [ WordNet 1.5 ]
2.Hence: [ fig. ] Studies or other preparatory work done prior to some activity; -- usually used of preparations for activities of significance or consequence for the performer; as, the candidate didn't do her homework well and was outclassed in the debate. [ PJC ]
3. Paid work done at home, especially piecework. [ PJC ]