Sentence:  In fact it has caused us to give serious thought to moving our residence south , because it is not easy for the most objective Southerner to sit calmly by when his <WSD>host</WSD> is telling a roomful of people that the only way to deal with Southerners who oppose integration is to send in troops and shoot the bastards down . 
Meaning of the word marked with <WSD> tags:  a person who invites guests to a social event (such as a party in his or her own home) and who is responsible for them while they are there