Interesting words that start with the letter "Z":

zabuton - flat Japanese cushion for kneeling or sitting
zakuska - hors d'oeuvre; snack
zanjero - supervisor of irrigation canals
zarf - ornamental holder for hot coffee cup
zegedine - silver drinking cup
zelatrix - older nun in charge of disciplining younger nuns
zelophobia - irrational or fear of jealousy
zenography - study of the planet Jupiter
zeppole - a variety of doughnut
ziganka - Russian country dance
zumbador - South American hummingbird