Meaning

• One which receives or entertains a guest, socially, commercially, or officially.

  "A good host is always considerate of the guest’s needs."

• 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 moderator or master of ceremonies for a performance.

  "The host was terrible, but the acts themselves were good."

• Any computer attached to a network.

• 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."

• (evolution) An organism bearing certain genetic material.

  "The so-called junk DNA is known, so far, to provide no apparent benefit to its host."

• A paid male companion offering conversation and in some cases sex, as in certain types of bar in Japan.

Meaning

• To perform the role of a host.

  "I was terrible at hosting that show."

• To lodge at an inn.

• To run software made available to a remote user or process.

  "Kremvax hosts a variety of services."