| ghost | (noun) a mental representation of some haunting experience | Synonyms: shade, specter, spectre, spook, wraith |
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| (noun) a suggestion of some quality | Synonyms: touch, trace |
| (noun) the visible disembodied soul of a dead person | - |
| (noun) a writer who gives the credit of authorship to someone else | Synonyms: ghostwriter |
| host | (noun) an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association | - |
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| (noun) (computer science) a computer that provides client stations with access to files and printers as shared resources to a computer network | Synonyms: server |
| (noun) a vast multitude | Synonyms: horde, legion |
| (noun) any organization that provides resources and facilities for a function or event | - |
| (noun) archaic terms for army | Synonyms: legion |
| (noun) the owner or manager of an inn | Synonyms: boniface, innkeeper |
| (noun) a person who acts as host at formal occasions (makes an introductory speech and introduces other speakers) | Synonyms: emcee, master of ceremonies |
| (noun) 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 | - |
| (noun) (medicine) recipient of transplanted tissue or organ from a donor | - |