overpack noun 1verb 1forms 3 noun1 •A container intended to hold smaller containers.Each container in an overpack must be a package authorized for that hazardous material in the HMR. — 2011 verb1 •To pack too much.The truth is, I tend to overpack like everyone else, and this summer is no different. — 2008 formsoverpacked · overpacking · overpacks
