millinery

noun

1. (countable, uncountable)Women's hats.

   “The show is worth watching for Agnes van Rhijn’s withering propriety and Bertha Russell’s dresses and millinery alone.”

2. (countable)A shop selling women's hats.
3. (uncountable)The business and work that a milliner engages in.

   “They used to tell one about a kid asking his grumpy old man when they were walking to the park, "What's the name of this flower, Papa?" And the old guy is peevish and he yells, "How should I know? Am I in the milinery business?"”