The term can refer to a person, organisation, or similar that receives guests or intruders. It may also refer to:
In :
- Host (biology) , an organism that harbors a parasite, mutual partner, or commensal partner; or a cell infected by a Virus
- Host (psychology) , the most important mental entity in someone who has Dissociative Identity Disorder (Multiple Personality Disorder)
- In Host-guest Chemistry , a host molecule, such as a Receptor , can receive a guest
In :
- Host Computer that has a Hostname in computing
- --- Hosts File , a file that serves to look up Internet Protocol addresses
- --- Web Host , a company or individual who offers web space and sometimes a domain name
- --- Bastion Host , a machine that controls access between a private network and a public one (such as the Internet)
;Other uses:
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