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English definition of “host”

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host

noun  /hoʊst/ us  

host noun (PARTY ORGANIZER)

[C] ( female hostess,  /ˈhoʊ·stəs/) someone who gives a party or has guests: Lucy was a gracious host. Vancouver played host to the conference (= the event happened there).

host noun (BROADCASTER)

[C] ( female hostess,  /ˈhoʊ·stəs/) a person who introduces guests and performers on television or radio: a talk-show host

host noun (PLANT/ANIMAL)

[C] a plant or animal that another plant or animal lives on as a parasite

host noun (LARGE NUMBER)

[C usually sing] a large number: They cared for wounded soldiers and performed a host of other duties.

host

verb [T]  /hoʊst/ us  
to be the host for guests or for a special event: Which country is hosting the next Olympics?
(Definition of host from the Cambridge Academic Content Dictionary © Cambridge University Press)
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