Sentence:  A good part of the train's personality lay in the <WSD>Zephyrette</WSD>, an on-board factotum who, like an airline stewardess, was a mix of hostess, paramedic, tour guide, secretary, nanny, security guard, purser, public relations agent and ombudswoman. 
Meaning of the word marked with <WSD> tags:  (historic) An on-board hostess on the "(California Zephyr)" train, between 1949 and 1970.