A room in a home or hotel set aside for the use of visiting guests.

(idiomatic) Do as you wish; go ahead; help yourself; go for it!

(music) A guest on a music or other recording. / (television) An actor on a television program who stars in one, or a few, episodes.

Of an actor: to star as a guest. / (sports) Of a player: to play as a guest of another team.

(astronomy) A nova or supernova recorded by the Chinese.

A person who has been invited to present a speech at an event where they are not the host.

(informal) A person who is invited to a party or other function not because their presence is desired but because inviting them seems necessary.

plural of guest book

plural of guest speaker

(British spelling) A guest in whose honour a gathering is held; the most important guest.