(n): a fully developed person from maturity onward
(n): a vast multitude
(n): a large gathering of people
(n): an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association
(n): a living thing that has (or can develop) the ability to act or function independently
(n): a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers)
(n): a person who tries to please or amuse
(n): archaic terms for army
(n): a permanent organization of the military land forces of a nation or state
(n): any organization that provides resources and facilities for a function or event
(n): a group of people who work together
(n): (medicine) recipient of transplanted tissue or organ from a donor
(n): a person who receives something
(n): the owner or manager of an inn
(n): the proprietor of an inn
(n): a technical name for the bread used in the service of Mass or Holy Communion
(n): food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
(n): (computer science) a computer that provides client stations with access to files and printers as shared resources to a computer network
(n): a machine for performing calculations automatically
(v): be the host of or for
(v): provide entertainment for
Contranymic in the sense of an individual vs. a multitude.