S: (n) minder (someone (usually in totalitarian countries) who is assigned to watch over foreign visitors) "I turned around and there, a few hundred feet away, was our government minder, Li Wong Su, huffing and puffing toward us"
S: (n) assistant, helper, help, supporter (a person who contributes to the fulfillment of a need or furtherance of an effort or purpose) "my invaluable assistant"; "they hired additional help to finish the work"
S: (n) worker (a person who works at a specific occupation) "he is a good worker"