Host

Host can mean:

In general English, the term host can refer to a person, organisation, animal, cell, computer or similar that receives guests or intruders
In television or radio, the host of a show is the person who presents it - for example Jay Leno is the current host of The Tonight Show.
In biology, a host organism harbors a parasite, mutual partner, or commensal partner, typically providing nourishment and shelter. A host can also refer to a cell infected by a virus See host (biology) for detail and also symbiosis
In psychology and mental health, a host represents the most important (to therapeutic goals) mental entity in someone who has Dissociative Identity Disorder (DID, formerly known as Multiple Personality Disorder or MPD). See host (psychology)
In Japan, a host, a male gigolo, provides an entertainment service for females. See host club (Japan)
In informatics, host serves as a synonym of server
Host , an album released by the heavy metal/goth metal band Paradise Lost in 1999
A host may also consist of a large group, such as an army or a large number of people under a single cause or banner. Typical usage in English might generate the clause: "a host of US troops invaded Iraq in 2003". In the Bible, the heavenly host means "chorus or army of angels"
In Roman Catholicism, the host names the transubstantiated bread in the Eucharist. See also viaticum
In host-guest chemistry a host molecule, such as a receptor, can receive a guest, such as a ligand
In computing, a host file, stored on the computer's filesystem, serves to look up the Internet Protocol address of a device connected to a computer network
Often used as a short term for WebHost (A company or individual who offers webspace and somtimes a domain name in exchange for services or money.)