■ noun
1》 a person who is invited to visit someone's home or attend a social or official function.
↘a person invited to take part in a broadcast or entertainment.
2》 a person staying at a hotel or boarding house.
■ verb appear as a ~ in a broadcast or entertainment.
Phrases
be my ~ informal please do!
~ of honour the most important ~ at an occasion.
Origin
ME: from ON gestr , of Gmc origin.