| 1. | a person who receives or entertains guests at home or elsewhere: the host at a theater party. |
| 2. | a master of ceremonies, moderator, or interviewer for a television or radio program. |
| 3. | a person, place, company, or the like, that provides services, resources, etc., as for a convention or sporting event: Our city would like to serve as host for the next Winter Olympics. |
| 4. | the landlord of an inn. |
| 5. | a living animal or plant from which a parasite obtains nutrition. |
| 6. | Surgery. the recipient of a graft. Compare donor (def. 2). |
| 7. | to be the host at (a dinner, reception, etc.): He hosted a reception for new members. |
| 8. | to act as host to: The vice president hosted the foreign dignitaries during their visit. |
| 9. | to act as master of ceremonies, moderator, or interviewer for: to host a popular talk show. |
| 10. | to perform the duties or functions of a host. |

host 2 (hōst) n.
[Middle English, from Old French, from Late Latin hostis, from Latin, enemy; see ghos-ti- in Indo-European roots.] |
host (hōst)
n.
The animal or plant on which or in which a parasitic organism lives.
The recipient of a transplanted tissue or organ.