Historical Examples. 1  Not till the third day commence the first geological operations. 2  It is understood that Col. Lawrence will commence this benevolent and patriotic work in the spring or early summer. 3  At daybreak on the 14th M. de Villeroy sent word to M. du Maine to commence the action.
Since Animalia also means animal and animals are made of more than one cell, yes, the kingdom Animalia is multicellular.
Some organisms are partially uni-and multicellular, like Dictyostelium discoideum. The other can be unicellular and multinucleate, like Myxogastria and Plasmodium. Candidatus Magnetoglobus multicellularis, related to Deltaproteobacteria, is a multicellular prokaryote. It is neither unicellular, nor a colony.