The noun host has 10 senses (first 6 from tagged texts)
1. (8) host -- (a person who invites guests to a social event (such as a party in his or her own home) and who is responsible for them while they are there)
2. (7) horde, host, legion -- (a vast multitude)
3. (4) host -- (an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association)
4. (3) master of ceremonies, emcee, host -- (a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers))
5. (2) host, legion -- (archaic terms for army)
6. (1) host -- (any organization that provides resources and facilities for a function or event; "Atlanta was chosen to be host for the Olympic Games")
7. host -- ((medicine) recipient of transplanted tissue or organ from a donor)
8. host, innkeeper, boniface -- (the owner or manager of an inn)
9. Host -- (a technical name for the bread used in the service of Mass or Holy Communion)
10. server, host -- ((computer science) a computer that provides client stations with access to files and printers as shared resources to a computer network)
Overview of verb host
The verb host has 1 sense (no senses from tagged texts)
1. host -- (be the host of or for; "We hosted 4 couples last night")