Any one of a number of plants with daisylike, button shaped flowers.
Button which may be attached to clothing without resorting to needle and thread.
Any of several blue flowering plants, especially cornflower, Centaurea cyanus, and plants of the genus Scabiosa.
A blue Australian parrot, especially Northiella haematogaster.
A traditional flat Scottish hat made of blue wool; a blue tam-o'-shanter.
Someone who wears such a hat; a Scotsman, especially a Scottish soldier.
Any of several North American species of Lupinus common in the southwestern US, especially Lupinus texensis and Lupinus subcarnosus.