1 : a temporary resident
2 : (medicine) recipient of transplanted tissue or organ from a donor
3 : (computer science) any computer that is hooked up to a computer network
4 : an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association
5 : a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers)
6 : any organization that provides resources and facilities for a function or event
1 : be the host of or for