Wicker — a brownie who cheated Coathook
Wildwood — an expression for what Faerie was in its earliest days
Wingbender — a mixed drink featuring hawthorn-berry liqueur
Wingspan — for Working Mothers — a magazine
Winter Dynasties — an earlier age of Faerie
Winter Dynasty Bridge — a tourist spot in the City
Wisp-maidens — a kind of fairy
Witchlight — a magical (or "scientific") method of illumination
Woodbine, Julia and Calpurnia — sisters Poppy knew at school
Yarrow, Cornelia — fairy lady in Penumbra Station
Young Blossoms — the Faerie equivalent of something like the Girl Scouts
Ys — large body of water next to the City
Zinnia — once rich and powerful House now fallen on harder times
Zinnia Manor — now a sanitarium, home of Erephine Primrose