a person who receives or entertains guests at home or elsewhere: Who was the host at last night's dinner party?
a master of ceremonies, moderator, or interviewer for a television or radio program, podcast, online chat space, or the like.
a city, country, company, or the like that provides services and resources for a convention or sporting event, visiting personnel, etc.: Our city is proposing to serve as host for the Winter Olympics.
the owner or manager of an inn, bed-and-breakfast, restaurant, etc.
Computers, Digital Technology.
Also called host computer . a computer, often a mainframe, that stores, maintains, or controls access to a database, application, printer, etc., for other computers through a network connection; server: The new data should be rapidly uploadable from the terminal to the host.
an organization that maintains, controls, or provides access to a website, email service, etc., via the internet.
someone who initiates a computer game, videoconference, or the like on their computer or device, inviting and allowing others to participate on their own devices and sometimes controlling certain aspects of the event: Once you’ve logged in to the meeting with the password, wait for the host to admit you.
Biology. a living organism that is the source of nutrition for a parasite or that is the dominant partner in a symbiotic relationship with another organism: The virus uses the host’s cellular machinery for several steps of its life cycle.
Surgery. the recipient of a graft or of a transplanted organ, tissue, etc.: Compare donor (def. 2).
relating to or being a city, country, company, or the like that provides services and resources for a convention or sporting event, visiting personnel, etc.: International aid organizations must follow the laws and advisories of each host country where they work.
Computers, Digital Technology. relating to or being a computer that stores, maintains, or controls access to a database, application, printer, etc., for other computers through a network connection: The host PC runs the company’s documentation software, but employees can download and upload the files from their own computers.
Biology. relating to or being a living organism that is the source of nutrition for a parasite or that is the dominant partner in a symbiotic relationship with another organism: Exposure to altitude may disrupt the symbiosis between the host animal and its normal intestinal flora.
to provide or arrange the venue for or receive guests at (a dinner, reception, etc.): He hosted a reception for new members.
to receive and entertain (one or more guests): The vice president hosted the foreign dignitaries during their visit.
to act as master of ceremonies, moderator, or interviewer for: She hosts a popular talk show.
Computers, Digital Technology.
(of a computer) to store, maintain, or control (a database, application, printer, etc.) to which other computers have access through a network connection: The office server hosts the entire integrated sales and inventory system for all the workstations.
to maintain or control and provide access to (a website, email service, etc.) via the internet: Who hosts your website, and how much do they charge?
to initiate (a computer game, videoconference, or the like) on one’s computer or device, inviting and allowing others to participate on their own devices and sometimes controlling certain aspects of the event: I'm hosting a multiplayer game tonight if you want to join.
to act as host, as for a social event, radio program, videoconference, etc.: Last Thanksgiving was at my place, so I think it’s your turn to host this year.She won’t be here for our weekly virtual meeting, so I’m hosting instead.
- host·less, adjective
- host·ship, noun
Other definitions for host (2 of 3)
a multitude or great number of persons or things: a host of details.
Other definitions for Host (3 of 3)
the bread or wafer consecrated in the celebration of the Eucharist.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use host in a sentence
There are a host of enzymes dedicated to RNA’s destruction floating around inside cells and nearly everywhere else.Here’s why COVID-19 vaccines like Pfizer’s need to be kept so cold | Tina Hesman Saey | November 20, 2020 | Science News
On the show this week, Lewis along with fellow hosts Andrew Keatts and Sara Libby, reviewed Faulconer’s flirtation with a run for governor and how that may match up with trends in his political career of being the No.VOSD Podcast: Why Montgomery Steppe Wants to Be Council President | Nate John | November 20, 2020 | Voice of San Diego
Ezra Klein, who rose to prominence as a policy blogger, including at The Washington Post, will become a columnist and podcast host at the Times, he said on Friday.Ezra Klein leaves Vox, the website he founded, for New York Times, in a digital media A-list exodus | Paul Farhi, Sarah Ellison | November 20, 2020 | Washington Post
Slack CEO Stewart Butterfield joins a host of other leaders of companies that have benefitted from some of the changes to business wrought by the pandemic.Top tech CEOs join this year’s Brainstorm Tech conference | Aaron Pressman | November 20, 2020 | Fortune
Yalitza Aparicio made her hosting debutThe awards show had a couple of host shake-ups in the days leading up to the ceremony.Latin Grammys 2020: 5 things you missed, from Bad Bunny’s performance to Pitbull honoring front-line workers | Bethonie Butler | November 20, 2020 | Washington Post
Three years ago, Republican Guard soldiers came into the hills and killed a cleric accused of hosting Jundullah fighters.The Dangerous Drug-Funded Secret War Between Iran and Pakistan | Umar Farooq | December 29, 2014 | THE DAILY BEAST
Suppose my hotel “conscientiously objects” to hosting a gay couple.Do LGBTs Owe Christians an Olive Branch? Try The Other Way Around | Jay Michaelson | December 14, 2014 | THE DAILY BEAST
A lawyer for RSD reportedly contacted sites hosting archived RSD material demanding its removal.
If the vendor is hosting the device, what does their system look like in terms of firewalls and other protections?
Chefs have been on the trend for years, hosting underground dinner parties and after-hour meals for staff.
Wherefore, to my mind, we were best to make no tarrying, but send out the messengers for the hosting straightway.The Water of the Wondrous Isles | William Morris
They also took counsel in what manner they should proceed on their hosting.The Ancient Irish Epic Tale Tin B Calnge | Unknown
They were birds of love that flew, for this was a hosting of happiness, and, therefore the Shee would not bring weapons with them.The Crock of Gold | James Stephens
Before Bellingham came to Ireland a hosting into Leix had been proclaimed, and he carried it out promptly.Ireland under the Tudors, Volume I (of II) | Richard Bagwell
A hosting was accordingly proclaimed for thirty-one days, and the army mustered at Carrickfergus.Ireland under the Tudors, Volume I (of II) | Richard Bagwell
British Dictionary definitions for host (1 of 3)
a person who receives or entertains guests, esp in his own home
a country or organization which provides facilities for and receives visitors to an event
(as modifier): the host nation
the compere of a show or television programme
an animal or plant that nourishes and supports a parasite
an animal, esp an embryo, into which tissue is experimentally grafted
computing a computer connected to a network and providing facilities to other computers and their users
the owner or manager of an inn
to be the host of (a party, programme, etc): to host one's own show
(tr) US informal to leave (a restaurant) without paying the bill
British Dictionary definitions for host (2 of 3)
a great number; multitude
an archaic word for army
British Dictionary definitions for Host (3 of 3)
the bread consecrated in the Eucharist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for host
The larger of two organisms in a symbiotic relationship.
An organism or cell on or in which a parasite lives or feeds.♦ A definitive host is an organism in which a parasite reaches sexual maturity. The anopheles mosquito is the definitive host for the malaria plasmodium because, while the mosquito is not adversely affected by the plasmodium's presence, it is the organism in which the plasmodium matures and reproduces.♦ An intermediate host is an organism in which a parasite develops but does not attain sexual maturity. Humans and certain other vertebrates are the intermediate host of the malaria plasmodium.♦ A paratenic host is an organism which may be required for the completion of a parasite's life cycle but in which no development of the parasite occurs. The unhatched eggs of nematodes are sometimes carried in a paratenic host such as a bird or rodent. When a predator eats the paratenic host, the eggs are ingested as well.
The recipient of a transplanted tissue or organ.
A computer containing data or programs that another computer can access by means of a network or modem.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.