host UK /həʊst/US /hoʊst/noun 12verb 3forms 3phrases 1 noun12 •a person who welcomes guests and takes care of them, at home, in business or at official eventsA good host is always considerate of the guest’s needs. •A paid male companion offering conversation and in some cases sex, as in certain types of bar in Japan. •A multitude of people arrayed as an army; used also in religious senses, as: Heavenly host (of angels)Why, Plugson, even thy own host is all in mutiny: Cotton is conquered; but the ‘bare backs’ — are worse covered than ever! — 1843 •A large number of items; a large inventory.The dealer stocks a host of parts for my Model A.There are a host of reasons for this decision. •A moderator or master of ceremonies for a performance.The host was terrible, but the acts themselves were good. •One that provides a facility for an event. •A person or organization responsible for running an event.Our company is host of the annual conference this year. •A cell or organism which harbors another organism or biological entity, usually a parasite.Viruses depend on the host that they infect in order to be able to reproduce. •An organism bearing certain genetic material, with respect to its cells.The so-called junk DNA is known, so far, to provide no apparent benefit to its host. •(Internet) Any computer attached to a network. •The consecrated bread of the Eucharist.Do you pray to the Holy Ghost when you suck your host? / Do you read who's dead in the Irish Post? — 1978 •The primary member of a system, typically the member who fronts most often. verb3 •To perform the role of a host.Our company will host the annual conference this year.I was terrible at hosting that show. •(Internet) To run software made available to a remote user or process.Kremvax hosts a variety of services. •(no longer used) To lodge at an inn.Where you shall host. — 1604 formshosted · hosting · hosts Phrases with host reckon without one's hostTo calculate one's bill without checking with the host or landlord; hence, to come to false conclusions, to miscalculate.